REVOX A77 MKI: Delivers what all the rest only promised

This lovely example of the legendary machine recently arrived at the Retro Audio Museum in Lelystad, the Netherlands. The Revox A77 was praised for its exceptional performance and quality right from its release. The mags were all over the same thing. "We have never seen a recorder that could match the performance of the Revox A77 in all respects, and very few that even come close", is how Stereo Review summed it all up.



Equally important is the fact that many professional recording studios quickly adopted the Revox A77. The fact that the A77 has been chosen for many unique and extremely prestigious roles in business and government, however, intrigues us. These kinds of tasks demand a high degree of precision and unwavering dependability.
Consider NATO as an example. The Revox A77 was an obvious choice when they needed a machine that was easy to operate, versatile enough to be used in a range of situations, and, most significantly, standardized. Take the government organization that required a tape device that was consistently dependable for registering and capturing satellite beeps. Revox is the option. Or the medical facilities that capture ECGs using A77s that have been specially modified. We could go on forever, but you probably got the idea by now. There isn't any ¼" tape machine that can match a Revox's multifunctionality, dependable performance, and dependability.
According to the serial number, this Revox was built in 1967. Interestingly, our other prized possession, Revox Studer G36, was also built in 1967. So, both machines, the tube one, and the fully transistored other, are at the same age. The Revox Model A77 MKI tape recorder has outperformed the Revox G-36 Mk III in terms of performance. A new electronic motor-speed control, 120 kHz bias-oscillator frequency (vs 70 kHz for the G-36), and solid-state electronics are features of the A77. Despite having three motors, two tracks, and two speeds, the A77 model we tested is significantly lighter and smaller than its predecessor.
A77 came with the original Revox NAB-Adapters with a grip ring but without a remote control. It is in full working order, and we’re excited to use this classic piece in our mus

 

Thank you! I have more than 800 units in the museum collection and display them on around 200 m2 for the public. My collection is growing every week, and I am hunting for rare and interesting devices according to my limited budget.
As for that Revox - update: it is MKII made in Germany in the early 70s.

 

Nice Deck - seems to be very simple - thats ART ! How do the double linked knobs ( Volume/ Stereo-Mono ... ) work, are you able to turn the transparent rings independent from the knobs ? Isn`t this a little bit tricky to handle ?

 

Knobs are easy to use, they are completely independent!