12-11-2014, 10:16 AM
Well, first off, the photos shown are not of a 640. Probably a 620 or 625. Model 630 and larger all have speaker sockets; 620B and 610B tombstones have hard-wired speakers.
A 640 speaker would have four terminals above the audio output transformer on the speaker; this one only has three, so it is a single-ended output, which also points away from a 640.
Smitty, how many tubes does this radio have?
A 640 speaker would have four terminals above the audio output transformer on the speaker; this one only has three, so it is a single-ended output, which also points away from a 640.
Smitty, how many tubes does this radio have?
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Ron Ramirez
Ferdinand IN
