#166062  by thistle3585
 Tue Aug 20, 2019 2:10 pm
What is the difference between Waldo Electronics TPC-1 Preamp buffer and a Unity Gain Buffer? I see both being suggested as preamps for my Tiger.
 #166063  by tdcrjeff
 Tue Aug 20, 2019 6:16 pm
Hey Mr. Jerman, welcome!

Waldo's TPC-1 is essentially a unity gain buffer, except that it is not quite unity gain, it's actually -1.7 dB. "Unity Gain Buffer" being the generic name.

Here's an old thread that tries to clarify the "non-unity gain" of the TPC-1. Though several posts talk about it having higher gain than "unity" when it actually has lower gain than unity.
https://rukind.com/viewtopic.php?t=16583

This post in particular:
https://rukind.com/viewtopic.php?p=143085#p143085

At least that's my understanding.

TPC-1 on Reverb pretty clearly states -1.7 dB gain:
https://reverb.com/item/23796313-wald-e ... ffer-1-7db