Rare Orion P-ST (1976) | Vintage Radio Cassette Recorder Review . Pictures + Video

Review: Orion Electric Portable Stereo Radio Cassette Recorder (Model: P-ST , 1976)

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General Overview

Manufactured by Orion Electric Japan in 1976, this unit was the company’s first portable stereo radio cassette recorder, and also their flagship portable model at the time.
In the German market, it was distributed under the name P-ST 3400 by Intel/Interlectronic, although the hardware remained fully Japanese-built by Orion.

According to direct communication with Orion Electric (2025), the only unit of this model officially preserved by the company is kept in their corporate museum in Japan.
The model is now considered extremely rare and collectible, especially in well-preserved condition.

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Included Accessories (Original Package Contents)

When purchased new, the unit came with the following accessories in the box:

1 × AC power cord

2 × wired microphones (one with built-in pause function)

1 × Orion-branded cassette tape

1 × user manual

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Controls and Features

At the top rear panel, there are 10 round push-buttons, arranged symmetrically in two groups of five:
Left side (from left to right):
FM, SW, AM, Stereo/Mono, AFC/OSC
Right side (from left to right):
Radio (internal tuner activation), Normal/Chrome tape selector, PA mode, Sleep, and Battery Level Check

At the top front, there are six mechanical transport buttons:
Pause, Stop, Play, Rewind (REW), Fast Forward (FFW), and Record (REC).

The cassette mechanism includes auto-stop in play mode, automatically halting when the tape reaches its end.

On the front left panel, there are three vertically-sliding faders for:
Treble, Left Speaker Volume, and Right Speaker Volume.

On the front right panel, three additional vertical faders control:
Left Channel Recording Level, Right Channel Recording Level and Mixing Level,

At the bottom right corner, there's a mechanical tape counter, next to a switch that enables auto-stop when the counter reaches 0000 during Rewind (REW) operations.

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Technical Specifications

Radio Tuner: FM / SW / AM
Good sensitivity across all bands

The radio section covers FM, AM, and SW reception, using a hybrid design that combines discrete components with integrated circuitry.
A NEC uPC585C IC is present in the signal path, handling IF amplification and demodulation stages, contributing to stable reception.

Later production units (1977) include an additional fine-tuning knob for AM/SW, located at the top-left corner. These units also feature improved sound performance, particularly in cassette playback, with enhanced treble and bass response, resulting in a more hi-fi character compared to the earlier 1976 models.


Tape Section

Playback:

The mechanism uses a 2-head design (combined record/playback head and separate erase head).
Delivers classic 1970s stereo cassette sound quality, with clear and well-balanced output for its category


Recording:

-Internal (radio → tape)
-External (via RCA stereo input or two wired microphones; the left-channel external microphone input supports microphones with a built-in pause switch for cassette control)
-Built-in front stereo microphones

All recording options deliver excellent results


PA (Public Address)Functionality:

Available through two additional microphone inputs (total of four mic inputs).
The left-channel PA microphone input supports microphones with a built-in pause button, allowing control of the cassette pause function.
Microphone mixing is supported via the two PA microphone inputs, allowing microphones to be mixed with the audio from the radio or cassette playback.

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Amplification & Output

Amplifier IC: 2 × Sanyo A4102 (operating at 9V)
Output: 2.4W per channel, 4.8W RMS total at 4 ohms


Speakers:

Two detachable oval speakers manufactured by Matsushita Electric (model EAS-15D86SZ), rated at 2.5 watts, 4 ohms (production code: 362D), deliver surprisingly good performance for indoor use.

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Physical Characteristics:

Antenna length: 68 cm
Main unit dimensions:
– Length (without speakers): 26.5 cm
– Length (with speakers attached): 40 cm
– Height: 24.5 cm
– Depth: 12.5 cm

Speaker housing dimensions (each):
– Height: 24,5 cm
– Width (front): 11 cm
– Width (rear): 12 cm
– Depth: 7 cm

Speaker dimensions:
– Height: 15 cm
– Width: 10 cm

Weight (without batteries) :
– With speakers: 5.2 kg
– Without speakers: 3.9 kg
– Each speaker: 0.65 kg
– Total speaker weight: 1.3 kg

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Connections

-RCA Line-In / Line-Out (rear panel)
-4 microphone inputs (plus 2 built-in microphones); two of the inputs support microphones with a built-in pause button, allowing control of the cassette pause function during both recording and playback.

-6.35mm headphone jack on the lower right front panel

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Power Supply Options

AC 220V / 110V (manual voltage selector switch on rear panel)
DC 13.2V (car adapter)
6 × D-cell batteries
Power consumption: 23W

Note: Internally, the unit operates at 9V using a voltage regulator, providing stable operation regardless of the input source.

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Build Quality & Serviceability

Internally built on a metallic chassis, the device has a solid and dense construction.
While the design is durable, it is not service-friendly:
Belt replacement requires significant disassembly.

Orion Electric equipped the P-ST with Rubicon electrolytic capacitors, a reputable Japanese brand known for reliability and low ESR. Interestingly, some Orion P-ST units were fitted with OSCAR electrolytic capacitors instead of Rubycon.
A Japanese manufacturer, believed to have been a subsidiary or OEM contractor associated with either Elna or Rubycon during the mid-1970s.
Many original units still operate with these capacitors (Rubicon /Oscar) performing within their specified tolerances, reflecting the company’s focus on durability and audio stability..
Both the motor (Orion NF925R01 60701-A), operating at 9V, and the transformer are branded and marked as Orion components.
The speakers, as well as several internal electronic components, are manufactured by Matsushita Electric, known for their high build quality and durability, consistent with the OEM production practices commonly used in Japanese portable audio equipment of that era.

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Design & Aesthetics

Distinctive visual features include:
-Two analog VU meters on the front panel
-Shiny chrome-style buttons
-Two detachable oval speakers

Overall, the unit gives a high-end impression, both visually and acoustically, for its era.

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Conclusion

The Orion P-ST (1976) is a well-designed and feature-rich portable stereo system that exceeded many expectations for its time.


✅ **Pros**
- Stylish appearance with strong vintage aesthetics
- Excellent build quality, solid and durable
- Detachable oval speakers for flexible placement
- Dual VU meters for accurate recording level monitoring
- A wide range of functions and settings: stereo/mono, chrome/normal tape, sleep, mixing, etc.
- Equipped with both Line In and Line Out, PA mode, and a car adapter for in-vehicle use
- A true "All-in-One" stereo system
- Features a total of 6 microphones (4 external mic inputs and 2 built-in), allowing for highly versatile recording and PA setups.
- Compact size for its class — easy to carry and position
- Excellent recording performance, with clear and balanced results
- Competitively priced at the time, considering its high-end features


❌ **Cons**

-While sound quality in the early 1976 units was good and clear, it fell slightly short compared to high-end radio cassette recorders from top brands in 1976.
In later 1977 production units, this was noticeably improved, delivering a more balanced and refined audio performance, making it fully competitive with other systems of its class.
-On FM radio, background noise becomes noticeable only when the Stereo button is engaged, while Mono playback remains clean. This behavior was typical of many analog tuners of the 1970s.




Final Verdict:

A very respectable and well-rounded audio system for its time, the Orion P-ST could easily compete with major names like Panasonic, Sony, and Philips. It offers a great balance of features, design, and recording quality.
Today, it is considered extremely rare, and finding one is a true challenge — making it a highly collectible and desirable piece for vintage audio enthusiasts.

Highly recommended for collectors seeking a rare, high-functioning, and beautiful piece of 1970s audio history.

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Personal Note

As someone who used this model extensively from early childhood through my teenage years, I had the chance to truly enjoy what an all-in-one stereo cassette recorder could offer. It satisfied every whim of adolescence — whether recording music off the radio or making mixtapes — and, thanks to its portability, it followed me everywhere. Even today, using it again brings back vivid and powerful memories.

Years later, I was fortunate to locate three units — two in almost brand-new condition and one in excellent condition. One unit originates from the initial 1976 production batch, while the other two belong to the improved 1977 production runs. All are now in regular use and continue to perform reliably.

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Media Available

If anyone is interested, I can provide detailed photos and video demos of all three units in operation.

 

Orion was a rare brand with several very unique models, shown here:
Orion | The Boombox Wiki

 

Some more information for Orion. Was really famous for her video / TV models.

https://en.m.wikipedia.org/wiki/Orion_Electric

As i read in Wikipedia was world's largest OEM television and video equipment manufacturers, primarily supplying major-brand OEM customers, with Toshiba being its major customer in the 2000s.
Orion produced around six million televisions and twelve million DVD player and TV combo units each year until 2019.
But he didn't realise many boomboxes. That's why her boomboxes are really rare to find.

Biside the three Orion p-st i have in my collection the extremely rare Orion 805.
A huge boombox, with rechargeable batteries function and really loud and amazing sound.

 

Where did your father buy the P-ST? What store?

 

He bought it in 1977 from a store that sold electrical appliances in Athens. The store was particularly well-known in the 70s/80s/90s but has now closed.

 

Yeah from what I've seen, most Orions (despite having German labels), seem to be found on auction sites in Eastern or Southern Europe, like Greece, Hungary, Poland, Czechia.......More than in Germany itself.

 

In Germany Orion P-st was rebranded through Intel/ interlectic as P-st3400 . But still made by Orion.
The same thing happened with the Orion 805 model which was rebranded by ISP as Monster box ISP SC-800 .

In general, it seems that Orion made several boomboxes that were released and sold under other brands. Another example is the Orion PST-1 which in Europe (Greece , France, Italy, England, Germany e.t.c ) was also sold as the Amstrad 8090 or as the Sencor S-5600

http://www.wikiboombox.com/tiki-index.php?page=Orion+PST-1


***The Intel/Interlectic P-st 3400 and the Orion Pst-1 pictures are from internet. Is not mine.

 

I just add the Orion Pst-1 model in the correct forum.
As i read it was mentioned already in the page 2 as Amstrad 8090.

 

Orion was more associated with cheap VCRs. However, they made ones like this which no major manufacturer would dare to, although Amstrad sold a twin deck as well. I guess VCRs were a sweet spot for Japanese manufacturers being high value but much easier to ship
than large CRT TVs. I have read that in the mid 1980s over 70% of Japan's electronic exports were VCRS.

Since Amstrad and Badge Engineering have been mentioned, founder Alan Sugar
said in his Autobiography that if you could get your own brand onto equipment it
gave you far more control over pricing. I wonder if companies like Interlectic had an
arrangement that a particular model would only be sold under that brand in a
particular country.

 

Orion had an arrangement with Interlectronic for the distribution of its P-ST boombox. The Interlectronic/Intel P-ST 3400 was sold exclusively in Germany and featured German labeling. To the best of my knowledge, the Orion-branded P-ST was never officially imported into the German market.
Personally, I believe it is an outstanding boombox. It has a really attractive design and a solid build, standing out thanks to its VU meters, oval speakers, and numerous shiny buttons. It also delivers very good sound quality, especially considering its category and era.

** Your VCR looks really amazing.

 

I remember in 1984 my father has buy our first Vcr. One silver Akai! A heavy and expensive unit. Was the new entry in our home and a big thing then. In 90s VCRs has become much cheaper.
In 1996 when im was student i have buy my self a cheap small Orion Vcr only with playback function. I still have it and stills works

Sorry for my bad English... I try my best

 

I have an Orion 805 and it has French labels. I also have the aka ISP SC-800 and it has German labels. They are both brutal boxes! I also remember seeing Orion branded DVD players over here at goodwill shops. Must be some sort of European brand I guess. I think I have seen that P-ST here branded as a Sencor.

 

And my Orion 805 has french labels too. Indeed a brutal boombox with amazing sound, amazing recordings and really nise bass.
The Orion p-st ( the black one in my first post pictures) wasn't released as sencor as i know. Only by Intel/ interlectic as P-st3400.
But maybe i loose something.
The Orion Pst-1 was released as Sencor S-5600 and as Amstrad 8090.

 

Yes you're right. By now I'm pretty sure the one I saw for sale here was indeed branded Intel.

 

Yes. Maybe it's this one in the picture from a Hungarian seller before 4 years.
It's the only Intel p-st3400; I found on line.
Generally in my research before i bought mines, i noticed that about every 4 years one Orion p-st appeared for sale on the internet. And usually with several defects and almost impossible to be repair (broken and missing door, missing buttons, etc.)
Also a serious problem that i faced was that the websites that sold the P-st did not allow the item to be sent to my country or did not even allow me to create an account without a mobile phone or an address in Hungary, Spain, etc.
In particular, to buy my first P-st, i had to transfer money to sellers bank account in Hungary based only on his promise that he would send it after he received the total amount including shipping cost!!! Luckily the guy was serious and he really sent it!!
For my second P-st purchase i asked a friend of mine from Italy to complete the order (sale from Spain) and after he receiving it to send it to me in Greece!
Fortunately, on both occasions i got lucky.
I was fully aware that the whole venture was risky but i decided to take the risk because there was no other Orion p-st for sale on the internet. I actually only found one Orion p-st every 4 years. Also it was the first time i found them in such good condition. Especially my first one was unused and new.
My second P-st sounds and looks also quite good.
The third Orion unit was acquired from Sweden and belongs to the 1977 production series, just like the first one. It incorporates the refinements introduced in the later batches, particularly in sound performance and radio reception. These improvements reflect the gradual evolution of the model during its production period, resulting in a more stable and refined overall performance.