BC-348? info needed
Ed Tanton
n4xy at ATT.NET
Sun Oct 8 19:34:33 EDT 2000
Hi Ron... it's pretty easy to distinguish between the BC-348-Q & the
BC-348-R. Their tube complements differ sufficiently to let you know pretty
quickly: See lists below:
*** Note: * indicates a metal tube with a Plate Cap ***
Function BC-348-R BC-348-Q
1st RF 6K7* 6SK7
2nd RF 6K7* 6SK7
1st DET/OSC 6J7*&6C5 6SA7
1st IF 6K7* 6SK7
2nd IF 6F7*(Also OSC) 6SK7
BC-348-R: 3rd IF / 2ndDET / AVC: 6B8*;
OUTPUT: 6K6
BC-348-Q: 3rd IF: 6SJ7;
2nd DET / AVC / CW OSC: 6SR7;
OUTPUT: 6K6
Summary:
BC-348-R: 8 tubes 6B8*; 6C5; 6F7*; 6J7*; 6K6; 3 x 6K7*;
*** Note: * indicates a metal tube with a Plate Cap ***
BC-348-Q: 8 tubes: 6K6; 6SA7; 6SJ7; 5 x 6SK7;
*** Note: NO plate Cap tubes
Anything else I can do, let me know.
73 Ed Tanton <n4xy at arrl.net>
website: http://www.qsl.net/n4xy/
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