Armstrong 500 Amp/receiver

Armstrong 500 Amp/receiver 1 Armstrong 500 Amp/receiver 2 Armstrong 500 Amp/receiver 3 Armstrong 500 Amp/receiver 4 Armstrong 500 Amp/receiver 5 Armstrong 500 Amp/receiver 6 Armstrong 500 Amp/receiver 7 Armstrong 500 Amp/receiver 8 Armstrong 500 Amp/receiver 9

0 0 vote
Article Rating
Subscribe
Notify of
guest

This site uses Akismet to reduce spam. Learn how your comment data is processed.

1 Comment
Inline Feedbacks
View all comments
Cathovisor
Guest
2 years ago

I currently have two of these on the bench: a 526 receiver and a 521 amplifier. Both need extensive modification to use silicon output devices as the advanced (at the time) germanium output transistors are a well-known weak point. Very unusual in using a stabilised power supply for the whole amplifier – not just the pre-amplifier.

1
0
Would love your thoughts, please comment.x
()
x