[Boatanchors] Hammarlund SSB filter needed
gzook at yahoo.com
Sat Jul 30 10:27:52 EDT 2011
I got to looking at the soldering job on the case of the filter. Methinks the QC inspector was on vacation that week! So, I went ahead and opened the filter. It is a 6-pole and there were 5 passive components on the board along with the crystals. I replaced the 2 capacitors and 3 resistors and then resoldered the circuit board.
The attenuation went from almost 40 dB to about 6 dB and the filter now works fine. I really don't know if the problem was one of the passive components or the soldering. However, less than 50 cents worth of parts and it is now working.
--- On Fri, 7/29/11, John Hurst <hurstjsj at verizon.net> wrote:
Hi Glen. This happened to me on my HX-50 back in 1966 or so. I opened the filter and found one bad crystal. I bypassed the crystal and it seemed to work pretty well (for an HX-50).
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