10-25-2012, 08:38 PM
Agree about the battery sets. My experience is that you often find them in very good shape.
The 1A4 replaced the 34 tube, so it is probably a later run. Both of mine are 34 tube variants.
The 623 has an interesting output system that uses a 19 dual triode tube.
The 1A4 replaced the 34 tube, so it is probably a later run. Both of mine are 34 tube variants.
The 623 has an interesting output system that uses a 19 dual triode tube.
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