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People must understand that the power distribution in speech is not very efficient. Thus speech processors. They do several things but all are to the end of modifying power distribution to make it

Wow. This is serious bad news. Interesting, their website has no hint of it. - Jerry, KF6VB

Wow. This is huge. Martin bought up many companies as they were on the verge of closing and gave additional life to many of them that they wouldn’t have had, otherwise. Steve Wedge, W1ES/4 Time

I just got an e-mail from MFJ announcing they are going out of business. Will continue to sell until they are out of stock and will offer repair services in the future. Applies to all their associated

Yeah, and you should not have done it back in the day. If you crank up the gain and/or scream loud enough, the scope will go to a solid bar pattern... not good! Not all ssb transmitters had ALC back

Yeah, you don't want to do that. We have enough trouble these days with dirty signals on the air. Don't add to it. Get an inline processor, SP75 or equivalent. 73 -Jim NU0C "Joe WB9SBD via groups.io"

Thanks Jim, But I remember someone looking at the signal on a Heathkit station monitor and while it was a fat Christmas tree it was far from a fully filled as you say green bar. I wonder if anyone can

To getter the tubes,? you can use the lower B+ position, apply a bit of drive ( with amp into a DL), then tweak the tune cap off resonance a bit.? ?That's from W8JI. Another method is to use a

On my 4 x L4B's, they all use 3 x 15 ohm resistors in parallel for the suppressor assy ( IE: 5 ohms in total), then wrapped with 2 turns of 3/8" wide silver plated copper strap.? ( 15 ohm carbon

With the? ALC jack shorted out, the mic gain became the RF clipping level control.? IF? you wanted some more talk power for some pile up, it worked good.

It was done all the time back then. Just a spst toggle to short out the? ALC jack.? ?Then it looked like a solid green bar on the scope, instead of the typ 'xmas tree' pattern. Funny thing was,

Mine are silver plated copper.

Hello Lyndon. WB4HFN page can be of help. Also GW4ALG used to have a page on homebrew versions of the modules you have. Those old pages can be seen here: https://www.4alg.uk/radio/tr7/mods.htm This

thanks! Shawn kj7mx

I think they are actually plated copper. "K6OXN Bob via groups.io" <bobk6oxn@...> wrote: -- 73 -Jim NU0C

I don't have a nanoVna but the coil is the original .5 inch twisted aluminum original in the L7

Same here when I had an R7 with an AUX-7 board. Here's a not so great pic of one I made 40 years ago but it doesn't look quite right based on the info in the Module programming chart on page 4 of the

*** I did it too. I got the appropriate Molex connectors in Ebay, and wired up essentially a complete Aux7 on a piece of perfboard. Well, except for the crystal oscillators. - Jerry, KF6VB

So I just went diode shopping at Newark. They were giving away 4148s! I just bought a lifetime supply (1000) for twelve bucks. I just wish they sold caps that cheap ... --lyndon

Yup, DIP headers and 4148s are the way to go. This hack is years old. I did it in the late 80s and it had been around a while by then. :) 73 -Jim NU0C "Steve Wedge, W1ES/4 via groups.io"