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#1
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#2
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I have to agree with the other posts and say that its probably not worth
the effort. If the primary reason for the effort is to improve sensitivity, a tunable RF preamp (e.g.: Ameco PCLP) with a decent n.f. will oft times work wonders. I use one of these in-line with the antenna selector of receivers such as the RBS, RBM, BC-348, BC-312, various older Hammarlunds and Hallicafters with excellent results on the higher bands. One size fits all!! wrote: Is it possible to replace certain octal tubes with equivalent miniature in an older receiver and would there be an performance improvevment? Just mainly looking to boost performance. Any advice, thoughts, comments appreciated. Thanks...Gil |
#3
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My most recent project is making a replica receiver - but using octal tubes
to replace the original miniature one. Wonder what would happen to my GPR-90 value if I spent about a month to convert it to octal based equivalents? Fortunately, other projects are more in front of that one. Colin K7FM --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.783 / Virus Database: 529 - Release Date: 10/25/04 |
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