05-22-2013, 08:10 AM
Oh yes, and with respect to the 6J5, do NOT replace with a 6J5GT or 6J5 metal tubes, as they will not insert into the ones that have a tube shield base. A 6C5G or 6L5G will work in place of a 6J5, but both have much less transconductance.
IF output tubes are 6B4G, 1500 is too low to be use-able. NOS is 3000umhos, and without breaking out my tester, I believe the min is vic 2100 umhos.
6B4Gs are fairly expensive tubes. Bob Dobush and Alton Smith usually have them about as reasonably as you will find them.
Bob is at findatube.com
Alton is at tubes@antiqueradiotubes.com
IF output tubes are 6B4G, 1500 is too low to be use-able. NOS is 3000umhos, and without breaking out my tester, I believe the min is vic 2100 umhos.
6B4Gs are fairly expensive tubes. Bob Dobush and Alton Smith usually have them about as reasonably as you will find them.
Bob is at findatube.com
Alton is at tubes@antiqueradiotubes.com
