Kris Boomer 2 small tube 10 meter linear amplifier 6ju6/6jb6/6jf6 tubes
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- Опубликовано: 29 авг 2024
- Quick video of another Kris I found in the back, in the corner, in the dark. This is a Kris Boomer. Uses 2 small 9 pin 6ju6 tubes. Same base as its big brother, the 6lq6 and family, but about 1/2 the output. It looks nice, this one is in good shape, has good original 6ju6 tubes and does what its supposed to which is 50 RMS / 100 peak.
As far as amps go, this is about as simplistic a design you will ever find. Grounded grid tubes, basic full wave bridge power supply turned on only when transmitting by the relay, Pi output circuit, no tuned input circuit, no preamp, no meter, but it does have an output indicator light. I do like modulator type amps, which this is not, but other than that, I like this no frills design. IMHO pretty much all preamps in amps are junk anyway. Here is the schematic on CBTricks and even if you are no tech at all, you can see that there is not much to this amp. www.cbtricks.co...
Interesting to see a near mint Boomer. They punched the chassis out for an extra tube but the layout is reversed from the Big Boomer. Also, no cooling fan.
For those not familiar, the Big Boomer has three 6LQ6s driven by one 6KD6. It runs 600 plate volts to develop 190 watts input on AM and 400 watts input on SSB. It also features a receiver preamp, and a panel meter that reads output power, plate volts, and SWR.
Yep
Nice job again. Interesting video.
Thanks!
Clean.
I need to follow you maybe I can get me some of those old memories. Long time ago I had one of those.
You mean you haven't been following me already?
I mean fiscally being there looking, listening and learning. I enjoy your time brother.
@@tramdr Are you interested in tubes that work in these amps?
@@kd5inm Thanks but not really.
@@tramdr I ran up on a stockpile of 22JU6 and 22JG6 NOS that came from a TV repair shop. I have some to use and some to turn loose of. The boxes look a little rough but the tubes all look and test good. If you know of someone who needs some send em my way.
Good video Doc! Thanks
Glad you liked it!
Need a small choke for the RMI 100 1tube 8417 amplifier😢
We had an Amp in 70s, 6ju6 horizontal TV tubes two of them, 300 w. Out on cw?
Mabe with Dozy watts.
What's up Doc? I got my MK IV'S yesterday. Not the A's but seeing as how Barketts refreshed them from the 776 mic to all new tubes in the transmitter and the receiver and realignment include caps, really nice set. Dead keys 5 swings 25 pushes my Eagle 500 over 1k peak. Now the radio man says my RG8UX isn't good enough for my 120' run because of loss? Why can't I win? No such thing as plug and play?? Tech says I need at least RG213? But CB does stand for constant buying. What say you Magic Man?
Well, if you want better performance..... get rid of the 8x and get something with lower loss. Beldin 9913 and LMR 400 are very popular. What antenna you running?
@@tramdr I'm running an A99. I may look into directional before winter comes calling. Thank you.
what is the plate voltage onthese?
750 if I remember right.
Any idea where I can find one
Sorry, no. I want to keep mine, trying to play Pokemon, catch them all, unless you make me an offer I can't refuse.
Hello. Do you offer amp repair. If so how would i contact you?
Sorry, no I don't.
That's more than a drive my cobra does more than that
can't beat glass sound though.