11:14

Counterfeit TDA2050 performance test - interesting results!

46:21

The 5 kilowatt Crown

12:50

TDA2050 real vs. fake amplifier chip on the analyzer

36:30

Astor M6-D Transistor Radio - 1968

5:19

Build a discrete all-transistor RIAA phono preamplifier.

20:11

Does Your Vintage Stereo Journey End With Separates?

50:19

The MOST Broken Computer? The 1986 Sinclair Spectrum+2

23:01

Restore and reset high power amplifier using 56 transistors without transformer! #cbzproject