开云体育

Scan sent to wb2uaq.?

Incidentally, there should not be DC on the output—100 uf capacitor C18, in series with 39 Ohm resistor R35, connects the emitter of emitter follower Q7 to the output BNC socket. C18 should block the DC seen at Q7 emitter (-9.6VDC); perhaps C18 is shorted.

I've found my 466A to operate just fine on a pair of 9V transistor batteries. I wire battery tabs to the original mercury battery terminals and hold the 9V batteries in place with double-sticky foam tape. The 466A is thus totally isolated from anything other than the source and the load.

Paper original will be sent to Dave McGuire on Monday.