Showing posts with label amplifiers. Show all posts
Showing posts with label amplifiers. Show all posts
Thursday, 7 November 2013
Monday, 4 November 2013
Saturday, 23 June 2012
Pye Germanium Transistor 4 Channel Mic Amp Audio Mixer Unit TYPE 843803 Circa 1962 As Used By The BBC
This unit sounds extremely good on the 50ohm vintage ribbon microphones, the transformers are all Gardners we think & the ppm meter is an Ernest Turner, the 771847 input transformers are 600 ohm, others were available see circuit diagram. The 2G-309 transistors were all replaced with RCA 2613 type by the previous owners, ex BBC stock, it came from the original Dr Who studio so I was told by the seller on a Merton Abbey Mills car boot sale in 1996 sold to me for £20.
There is a short video describing this unit coming up soon.
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