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Someone told me these were being Built by Fatboy for Ameritron. They seem to have the same color solder so maybe there's somthing to it.

That's because they don't need any more and to build them with more increases IMD. I use 4CX5000s for door stops in my shop.

Not saying this is the problem but. I remembered hearing about resistors across the 10 meter driver and maybe even other stages ganged to the driver tuning tank circuits used for lowering Q. If those go open it might tune up fine somewhere but not across the whole 500 khz.

The Kenmore TS-2000 isn't bad on AM. It will not make over 90% positive modulation though. There's software in the internet to open the ssb up to 3300 hurts (the neighbors).

Imagine that. Nasty folks on 75 meter ssb.

Hey Ed, I have a tape of you talking with Joe Walsh on 29050 back in 2002 or so. H.D.

If one wants to portray themselves as a beacon of all that's right and wrong one might start at home. I'm no grammar nazi but sheesh. A mind is a terrible thing to waste.

I'd rather have an amp with a few ugly and experimental parts than one that looks perfect and isn't complete. Some of the finest quality signals are made by stuff that looks like crap. Take that to the bank. There are a whole bunch of projects like this that never get finished because...

Yup. You can talk to the whole entire world on 10 with under 100 watts and a wet noodle antenna when the cycle is good. Consider buying a rig that works on all of H.F. for when you get your license. Plenty of other bands to use while waiting for openings on 10. Plus u get more for your money...

AND will make the receiver AGC produce a lot of transient distortion while tracking the carrier. Some people actually enjoy distortion. Just another way around having a large enough final to do the job at hand properly.

I've installed several of these. Very little problems except for self inflicted ones. One station setup used a trio of the relay boxed driven by one control unit. 1 box switched bands and the other 2 switched amplifiers. The guy had amplifiers tuned to each band.

Sorry to hear about your loss. Sounds like you made the most of his time here. Expect more messages.

I wouldn't let the amp anywhere near the MFJ:scared: If it's a simple circuit there could be nasty little transients.

You can fatten the existing traces with more solder. The relay setup works OK and is a lot cheaper and easier than a remote rotary in terms of control and wear. These units aren't bad. Drake made something similar years ago as a 4-line accessory. Weatherproofing is the weakness.

Unless the layout is changed a fiberglass mast isn't going to help. The feedline for the Sirio antenna will still screw up the 2 meter vertical.

A coaxial coil with sufficient reactance to choke common mode current from the outside of the coax shield is effectively a balanced to unbalanced transformer. It will not transform the impedance as you said. In the example of this thread the 300 ohm feedline itself acts as an impedance...

I don't do diagrams. If you can't put the whole antenna in front of the mast at least stand the 2 meter antenna away from the mast with a perpendicular mount of some kind. Don't make it horizontal hoping for better results with repeaters. 25 foot length of guy wire will effect your wire...

Those are not sweep tubes. Sweep tubes were used in TV sets. They are often maligned by R.F. dunces and almost always make better linear amplifier tubes in a simple circuit than the crappy 6146. Common tubes in radio work: 12AX7 6L6 807 5U4 5R4 6146 going larger... 3-500Z...

Another success thanks to the ugly Balun BalUns are fun.

Tommy Two Watt and the Karol Madera had nothing in common with regard to content.