Heathkit SB-230 linear mods
Has anyone tried to use the 8560 tube (common in older Motorola Micor,
etcVHF repeaters as a replacement for the conduction cooled /Eimac 8873 tube? Both have similar specs and I'd like to keep the conduction cooled feature of my SB-230. tnx, Doug/WA1TUT |
"DOUGLAS" wrote in message
k.net... Has anyone tried to use the 8560 tube (common in older Motorola Micor, etcVHF repeaters as a replacement for the conduction cooled /Eimac 8873 tube? Both have similar specs and I'd like to keep the conduction cooled feature of my SB-230. tnx, Doug/WA1TUT Doug - Skipp May wrote about this on the AMPS reflector a few years ago. It is a smart conversion to maintain the quiet operation - BUT with a bit less power. I have never seen a web page outlining this change (parts, photos and instructions). Check his Sonic / RadioWrench web page (link below) or contact him directly http://www.radiowrench.com/sonic/ w9gb |
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