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Supreme 450 set tester schematic
DaleHCook
Philco, Zenith, and Howard Phan
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Posts: 161
Threads: 8
Joined: Apr 2023
City: Roanoke State, Province, Country: Virginia
#5

08-21-2024, 02:55 PM
Copper-oxide diodes existed at that time. I own a Triplett 1167-A set tester ca. 1935 which uses a small copper-oxide stack as the voltmeter rectifier for measuring AC. I doubt that is what is shown on the schematic, though.
Dale H. Cook, GR/HP/Tek Collector, Roanoke/Lynchburg, VA
https://plymouthcolony.net/starcity/radios/
(This post was last modified: 08-21-2024, 02:58 PM by DaleHCook.)
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Messages In This Thread
Supreme 450 set tester schematic - by daveone23 - 08-20-2024, 06:42 PM
RE: Supreme 450 set tester schematic - by morzh - 08-21-2024, 10:23 AM
RE: Supreme 450 set tester schematic - by DaleHCook - 08-21-2024, 02:55 PM
RE: Supreme 450 set tester schematic - by Chas - 08-22-2024, 11:24 AM



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  1. The PHILCO Phorum
  2. Various and Sundry Categories
  3. Test Equipment