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Model 65 Hiboy
Radioroslyn
Phorum Expert
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Posts: 7,248
Threads: 266
Joined: Dec 2009
City: Roslyn Pa
#7

07-09-2015, 04:36 PM
Bob,
Yes that is the volume control.

Bob L,
How it works is it varies the screen grid voltage on the two RF amp tubes. The lower the screen grid voltage the lower the gain of the tube hence the lower the volume and vise virsa.

Terry
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Messages In This Thread
Model 65 Hiboy - by Bob L. - 07-06-2015, 07:25 PM
RE: Model 65 Hiboy - by Radioroslyn - 07-06-2015, 08:59 PM
RE: Model 65 Hiboy - by Ron Ramirez - 07-07-2015, 05:13 AM
RE: Model 65 Hiboy - by Bob L. - 07-08-2015, 05:13 PM
RE: Model 65 Hiboy - by klondike98 - 07-08-2015, 05:38 PM
RE: Model 65 Hiboy - by Radioroslyn - 07-09-2015, 04:36 PM
Model 65 Hiboy - by klondike98 - 07-06-2015, 08:11 PM



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  1. The PHILCO Phorum
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