How about building a couple or two of THAT1512 preamps with phantom and gain (RG for 0dB to 60dB) and then feed directly into the 652 for adding color? Would that work? Not sure a 1512 can drive an input transformer -- if not, thru a THAT1646.
Broadcast mixer from 1952
- Thread starter Backtomad
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Hmm.. Thank you for your proposal but I see no reason to build a SS preamp into a tube preamp just because the low end is little lacking? And the low end isn't like totally cut off, its just couple db's down from being good.
I don't know for sure but I believe it's low end cut is like that on purpose as this is after all a broadcast mixer so maybe they built it that way?
They possibly built it that way for broadcast (1950s), maybe also to cover up some circuitry noise (hum)? Possibly also aged capacitor.
Was thinking near zero impedance (e.g. THAT1646) feeding directly into the input transformer to test it.
Benefit of 1512 in front is cheap and easy additional gain, if the circuit can handle it. And could be used 'clean' in other setups without 'colour' from that mixer patched after it.
But I agree, it would reduce that mixer to a mere 'colour box' patchable only when desired.
Was thinking near zero impedance (e.g. THAT1646) feeding directly into the input transformer to test it.
Benefit of 1512 in front is cheap and easy additional gain, if the circuit can handle it. And could be used 'clean' in other setups without 'colour' from that mixer patched after it.
But I agree, it would reduce that mixer to a mere 'colour box' patchable only when desired.
