[WRL] PC-81 and PC-91 Couplate Diagrams

[Larry Rau]

I have the internal diagrams and parts values for the PC-81 and PC-91
pentode and triode coupling networks.

I will try to scan these this week-end.

Somebody email me with a heads up... is it permissable to send a Jpeg as an
attachment to this group ?

If not.. I can do it as a list.

Bascially each one contains a screen resistor and bypass, a plate load
resistor
bypass for hi-cut, a following stage grid resistor similarly bypassed for
hi-cut, and a coupling cap in between.

The triode version has no screen resistor of course.

Values are pretty standard... as found in ARRL charts.

The exception being  the 250 pf bypasses to limit hi frequency response
somewhat.

I havent found a bad one yet...

But radios are like cats, You never know where they've been.

Larry W6WUH
captainlarry at jps.net