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Biggles · 2nd Oct 2017, 5:31 pm

I remember the Pye RTC. Most of the ones we had in control rooms used to make a sort of grumbling rustling sound all the time, mixed in with a bit of mains hum. This was down to noisy carbon resistors in the first stages of the amp. I think there was an OC71 in there? Then came the RTC's big brother, the Mascot 200, full of those little amplifiers with the two pots to adjust for output waveform symmetry. And tulip mikes! Happy days.
Alan.

2nd Oct 2017, 5:31 pm	#28
Biggles Rest in Peace Join Date: Feb 2004 Location: Hexham, Northumberland, UK. Posts: 2,234	Re: Common Pye PF1 RX deafness problem I remember the Pye RTC. Most of the ones we had in control rooms used to make a sort of grumbling rustling sound all the time, mixed in with a bit of mains hum. This was down to noisy carbon resistors in the first stages of the amp. I think there was an OC71 in there? Then came the RTC's big brother, the Mascot 200, full of those little amplifiers with the two pots to adjust for output waveform symmetry. And tulip mikes! Happy days. Alan.