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359, the price of entry to correctly play with the big boys ain't cheap! When you look at the socketless tubes, you realize, they've only got 25 watts of Gdiss... Whereas a socketed tube runs > 100 usually.... I've only purchased my SK series sockets surplus. WHY spend a grand when you...

Your right! And neither will get you closer than about 10 percent, especially on a modulated waveform! --Toll_Free

300 watts of DISSIPATION means about half that in CLEAN output. Meaning, 150 watts each. OUTPUT. Not a whole lot of room to spare. It's not a CB amp, it's not running bipolars, and it won't like being overdriven to make the meter go farther to the right. You want a REAL solid...

Yank the coil, vturn them upside down, remove insert. Turn insert upsie down. Put back. NOW GO GET SOME CERAMIC ADJUSTING TOOLS!!!!!!!!!!!!!!!!!!!!! This thread went to hell in a handbasket... Replacing finals with drivers and then going WTF??? --Toll_Free

1. Not everyone uses 50 ohm stuff. CBers use 50 ohm stuff, lots of appliance operators use it, and people lucky enough to have the $$$s to put up a resonant antenna for every band, then coax feed it... Or those lucky enough for the property, etc. Myself, I'm lucky enough to have 11 acres, so...

That's a statement that doesn't make any sense..... Even if you're talking about it at 50 ohms, it's only 1250 watts of RF output. 1500 is the legal limit. I can measure my 4CX5000A output amplifier with a 5A meter, too. Of course, I'm only putting 5 amps into a 600 ohm ladder line. 5...

No, they really do pull about 300 watts peak from the power supply. It IS a wattage number, most CBers are just not educated as to the difference between input and output power. Hence them believing an SB220 should swing to 2 grand, as well. --Toll_Free

Bummer. I used to live in Houston. That being said, I dunno anyone there I trust: This isn't knocking anyone, I just haven't been there in a decade. Do NOT let a hack touch that radio. Up and running, with 100 percent functionality, those radios command a good price, and with good...

Where ya located at? --Toll_Free

A quarter wvae, at resonance, will show between 1.3 and 1.5 SWR. By adding length, you introduced some reactance, to the tune of 14 or so ohms. This will <<APPEAR>> to be 50 ohms, although if using a VNA you'll see different. --Toll_Free

Receive gain means NOTHING, as this is NOT done at the first RF amplifier. Your problem is at the FIRST RF amplifier, NOT the IF amp, NOT anything else. If you can get a clean signal , then you don't need to worry about it. Otherwise, you're listening to a bunch of CBers. --Toll_Free

No, short end of it :)

Good to know, I'll be looking for you on 80, moleculo... Just put up a ladder line fed full sized 160 dipole ysterday, fed by the infamous johnson matchbox :) --Toll_Free

The only thing I was going to say to change was, DON'T jump D51 or R174 if you want to maintain STOCK slide range, BUT want the TX and RX to track together. If you do the minimal range mod, you SHOULDN'T need to realign the radio, unless your voltage tap points where different (ie, you went...

That was kinda my point. YOU can't do anything about HIS radio being out of alignment (as MOST are). BUT, with a slider as well as a rit, YOU can compensate for HIS issue, rather than playing catchup and sliding up and down a channel. --Toll_Free

I've done this in the past, both on a 400 and a 500. The 400, you'll get about 600 out of, peak. Keep the carrier about 100-120 watts. Maybe slightly less. I prefer 1/5 carrier / PEP swing, especially running a mod box. The 2879 pretty much saturates with CLEAN power out at 15 watts...

Mouser.com Vishay 6A10, or if you REALLY need high current, the 8A10. Fill your parts bins with them... You'll NEVER use another rectifier again. --Toll_Free

Both the Bill's where. Bill Good REALLY knew how to make a two way radio perform. AM, FM, SSB, didn't matter. We'd send radios up to him from San Diego, as SOON as we'd get them back, I'd start rippin them apart to make the mod sheets up LOL. THEN came the schematics, drawn by hand (no...

I started taking Bill Good and Bill Cheek equipment apart in the 80s. Also was 'friendly' with some of the people involved in Messenger, when they first came out. The gentleman that was techsupport@galaxyradios.com (Ray) for a LONG time was also my mentor.... He has a HELL of a station, if...

The good ones say Cobra on them. Honestly, the old ones (the ones everyone wants) are so old now cold solder joints, old capacitors failing, etc. that they aren't all their cracked up to be. Pick up a 148. They are all the same. They all do the same watts, within 4 or 5, they all slide...