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Analog Line Level Preamplifiers , Passive Pre-amps, Crossovers, etc.

Transformer based 6db preamp
Transformer based 6db preamp
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Old 4th July 2020, 03:44 PM   #1
happyrabbit is offline happyrabbit  United States
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Join Date: Apr 2012
Location: Whitefish MT
Default Transformer based 6db preamp

My latest diy preamp adventure. -/+ 24v Linear Supply. Sparkoslabs regulators. LSK489 for the jfetís. 6 layer PCB (s/g/p/p/g/s). Startup / shutdown muting.

Balanced -> LL1676(1:2) -> jfet follower -> 10k ladder -> jfet follower -> dc blocking cap -> RCA

I will post measurements soon.. the in/out are flipped on the case.
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