[Drakelist] experience with TR-7 CW filter

I am considering buying a 300Hz filter for the TR7 and wonder if any of you guys out there have experience with that narrow filter. Does it ring excessively or have excessive insertion loss? Also, would you recommend an new InRad filter rather than a used Drake original filter? Dennis AE6C

Re: [Drakelist] experience with TR-7 CW filter

I've got the 400hz InRad (I think that's it) and it's quite narrow. I can't imagine needing more narrow than that. I note no excessive loss with the 400hz Inrad or the 500hz Drake... John K5MO At 02:06 PM 8/10/2009, Dennis Monticelli wrote: I am considering buying a 300Hz filter for the TR7

[Drakelist] R-4x antenna coil slug

Hi foks, If Garey, our guru on these, things is by chance well enuf to be monitoring, we hope you're doing well. I'm into a local fellow's R-4A, and noticed the antenna xfmr, T-1, had the slug set lower in the coil than the others, by abt 1/4". In order to re-adjust it, I removed it, and

[Drakelist] Manual Problem

This is not really off topic because it deals with Drake manuals also. Many of the free manual copies on the internet were scanned on 8 1/2 by 11 size-limited scanners because they are inexpensive and work well. That leaves larger schematics (11 by 17) with two or three pages that have to be spl

Re: [Drakelist] Manual Problem

The best way would be with Adobe Photoshop, starting with a relatively high resolution file, or simply take a digital picture (again relatively hi-res), evenly lit, of the complete 11X17, or whatever size it is. In the biz we call it "copy art". Rick W9WS On Aug 10, 2009, at 6:57 PM, Do

Re: [Drakelist] experience with TR-7 CW filter

I have the 500 and 300 Hz filters in my TR7. I found the tuning to be a bit sharp with the narrow filter using the TR7 VFO, but with my DDS VFO the tuning is very slow and the filter is much easier to use. It doesn't ring any more or less than any other narrow filter I've ever heard and I have

[Drakelist] L4B

If anyone has or knows where to obtain a identical Drake output rf switch for a L4B I would appreciate the information. I have been refurbishing a L4B and came to the conclusion that the L4B switch I have is too iffy to put back in the L4B, as it was broken in three places and the contacts bent a

Re: [Drakelist] Manual Problem

> > This is not really off topic because it deals with Drake manuals also. > Many of the free manual copies on the internet were scanned on 8 1/2 > by 11 size-limited scanners because they are inexpensive and work > well. That leaves larger schematics (11 by 17) with two or three pages > that have