My hp 800 telefunken runs on 220 v mains only.
My question is will it perform better if plugged into 220v feed as opposed to battery powered or a 12 vdc transformer.
Sounds like a dumb question but I hope its not.
Reason I ask is I haven't ever powered it up with 220v
hifi tom compared this box as being better than the gf 777 .
I just aint feelin that.
Dont get me wrong it has a great rich sound at lower volumes but it seems to fall apart at the higher end of the scale, almost like the amp is being underpowered or amp is just not powerful enough for the speakers .

get this -- works perfect

http://cgi.ebay.com/NEW-110-TO-220-VOLT-USA-TRAVEL-PIN-...QQrdZ1QQcmdZViewItem

Thanks Ira for the suggestion!!!
I picked up a 240v 40 watt reverse converter today at radio shack today for the funken hp 800 .
Now I know what hifitom was talking about.
This radio will absolutely slay a gf-777 and probably some other bigger one piecers with no problem.(tests to follow)
with good clean sound with rich bass at high volume.
Now my question is why does the power output at half bore when run on batteries or the 12 vdc input power???
Night and day difference.
Lets just say I wasnt very impressed with this box till I fed it with 240 volts mains.

All the Telefunken's (Heavy Duty), JVC PC-55's, Sansui CP-7's, Sony FH-5's and the like will not and cannot run that kid of power on batteries alone. (Unless it was some kind of gel cell to the mains.)

The amperage drain it takes to push what is basically a home amp is too much. So what you have is a limiter that basically reduces the power say, from 30 watts per channel to 6. I noted this in my RX-C100 review as well that the Panasonic RX-C100 will destroy a Telefunken on battery power alone.

Oh yeah almost forgot...keep in mind your unit is designed to run 50hz(cycles) not 60hz as we do in the US. Keep an eye on the cassette motors and I do believe you have clock as well that will run fast.

I got ya!!
That makes sense to me.
Now even with the converter it is going to to run 60 hz?
My deck is running at good speed and my clock runs on a AA battery so it should be ok.
I heard of someone on here making a battery mod for their telefunken studio I will have to look back now and find that thread so I can ask what kind of battery mod he did. I think it is in the post i started about How many in the US.
This thing has some serious power output now and will be a definite candidate to pit against the mighty Pitbull at some point
Beware of the HP 800 it will be the one to watch ladies and gents
I am so syked about this box now its almost as if I got a new box today.
My guess is,
That these radios were engineered and designed with the intention for use primarily as a mini home shelf system with the added capability of running on batteries ??

That is correct T/A. The converters can only change the voltage, not the frequncy at which it flows. Most audio gear, etc. from that era unless dual voltage did not have switching ic's to run different cycles (50/60hz).

And most of these systems should really be tested with home speakers with the ridiculous amount of power they have. They were really shelf systems. The battery thing was part of the 80's let's make it work thing that made the era so great.

Bring it on! WOOF WOOF!!!

50 or 60 Hz is totally unimportant for every boombox. They are designed for DC operation and they all have speedregulated DC tape drive motors. So there ist no difference between 50 or 60 Hz. If you have a speed problem it couldn't caused by a wrong frequency of the AC supply.

quote:

Originally posted by oldskool69:
All the Telefunken's (Heavy Duty), JVC PC-55's, Sansui CP-7's, Sony FH-5's and the like will not and cannot run that kid of power on batteries alone. (Unless it was some kind of gel cell to the mains.)

The amperage drain it takes to push what is basically a home amp is too much. So what you have is a limiter that basically reduces the power say, from 30 watts per channel to 6. I noted this in my RX-C100 review as well that the Panasonic RX-C100 will destroy a Telefunken on battery power alone.

Oh yeah almost forgot...keep in mind your unit is designed to run 50hz(cycles) not 60hz as we do in the US. Keep an eye on the cassette motors and I do believe you have clock as well that will run fast.

set up to use a Gell Cell
but this came with a battery 12 volt 1.5 amp hour & when I recieved it the battery is completely dead, so another trip to Fry's is in order for a new Gell-cell.