Adding AVC Mod to Philco 70
Posts: 13,776
Threads: 580
Joined: Sep 2005
City: Ferdinand
State, Province, Country: Indiana
Ok Rob. I think I'm going to try it with a single 0.1 uF cap in circuit. If it isn't to my liking it will be an easy matter to add a wire from the middle terminal of bakelite block (12) to the cathode of the RF amp tube.
I just remembered another question I had, and either you, Rob, or you, Ed L., can answer this -
Let's talk about compensating condensers (19) and (22). These are grounded on one end, and are constructed to be grounded on the end where the mounting bolt passes through the rivet. Did you replace these with ungrounded compensating condensers, or did you leave the stock compensators in place with one end grounded on each?
Remember, we must lift the grounded terminals of the two IF transformer secondaries or else AVC will not work.
--
Ron Ramirez
Ferdinand IN
Messages In This Thread
RE: Adding AVC Mod to Philco 70 - by Ron Ramirez - 06-01-2019, 11:14 PM
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