[Collins] 75a-2 PTO stickers

[mike nussman]

Anyone know if PTO labels are aviliable anywhere for the 75a-2?
I'm doing a complete restore on a 75a-2 that will need buffed and cleaned inside and the label is about shot.However it at least has the serial # yet.

Also I noticed a fairly good improvement with the audio by adding a 390 pf cap on the audio gain pot at the points between the wiper and the point on the trailing terminal of the pot.This shunts some highs around the input of  the  pot to the af amp.In other words,adds a little pre emphasis before the Audio amp.

Try it sometime when you have the bottom plate off.Start out at 200 to 390 pf...too much "C" will add in too many mids and will sound like crap in a hurry.

Your final value will depend on your speaker config and of course your ears.

A cheap way to to make due with hardware constraints and reversable too.
Mike
W U 4 V