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37-640 bandswitch ?
#20

Oops, I for some reason I got it in to my head that you have 630, not a 640. None the less the front end of the 640/620 look the same.

Yes, looks to me like the push pull does give you an extra connection. Maybe this is too simple of a way of looking at it, but if you were to eliminate the bottom half of the output transformer it looks like the 620/630.

Can't think of anything witty.
Greg O.
Whitehall, PA


Messages In This Thread
37-640 bandswitch ? - by georgetownjohn - 01-18-2025, 01:15 PM
RE: 37-640 bandswitch ? - by RodB - 01-18-2025, 02:19 PM
RE: 37-640 bandswitch ? - by morzh - 01-18-2025, 03:52 PM
RE: 37-640 bandswitch ? - by georgetownjohn - 01-18-2025, 05:12 PM
RE: 37-640 bandswitch ? - by morzh - 01-18-2025, 07:05 PM
RE: 37-640 bandswitch ? - by morzh - 01-18-2025, 07:53 PM
RE: 37-640 bandswitch ? - by RodB - 01-18-2025, 08:51 PM
RE: 37-640 bandswitch ? - by georgetownjohn - 01-19-2025, 11:00 AM
RE: 37-640 bandswitch ? - by morzh - 01-19-2025, 01:13 PM
37-640 part IDd - by georgetownjohn - 01-19-2025, 03:40 PM
RE: 37-640 bandswitch ? - by Greg - 01-19-2025, 05:24 PM
RE: 37-640 bandswitch ? - by Greg - 01-20-2025, 12:06 AM
RE: 37-640 bandswitch ? - by Greg - 01-20-2025, 01:59 PM
RE: 37-640 bandswitch ? - by georgetownjohn - 01-20-2025, 02:53 PM
RE: 37-640 bandswitch ? - by georgetownjohn - 01-20-2025, 02:57 PM
RE: 37-640 bandswitch ? - by Greg - 01-20-2025, 03:40 PM
RE: 37-640 bandswitch ? - by georgetownjohn - 01-20-2025, 04:36 PM



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