We just got back to upstate NY, on shores of St.
Lawrence River ...... and am dreaming about new Elecraft products and projects we hams could build and buy. Please ping in with ideas & improvements: 1. A 13.8vdc dual-6146 TUBE AMPLIFIER, separate box, with view of the tubes ... 200 watt PEP. I know it may sound odd - but TUBES crank it out better than solid state - no matter what they tell us! I'd buy one in a heartbeat. KIT (similiar ham project, to HF PACKER .... FCC backs this amp form) PARTS - for Elecraft-BACKER-AMP, optional for this project hf amp. Powerable - from a 13.8vdc Astron type supply. BACKER-KIT project form only. You wannna xmt SSB as SSB should be heard? I think every ham, over 40, would buy and use one! Do you remember the Heath HW-32/22/12! 2. A small separate POWER/SWR METER, hf, 160-10 or 80-6, 15/200 watt range, KIT. BNC/SO-239 I/O's 3. A KIT vertical QRP/100W ANTENNA .... back packable, with decent SWR and carry-able in form. 4. A KIT horizontal END-FED-ZEP ANTENNA ... back packable, with decent SWR in carry-able form. 5. A KIT LOOP HF antenna, back packable, hangable, plug-together, qrp to 200W. 6. An in-line POWER OUTPUT INDICATOR (bnc, bnc) sensitive/viewable to .250 watt variance. Two (2) versions; NEON, mico-meter. 7. A marine-grade BOATABLE, tossable marine (river, lakes) portable HF ANTENNA. (Float, water ground line, tow line, boyant) 8. Elecraft "Golf Shirt", XXL please! White please, and some form of cotton/poly - not cheap. Small K2 on front pocket. Collar, short sleeve. 9. Elecraft HF PORTABLE TUNER Kit; meter, dummy load option, Elecraft K2 gray, 15/200W ranges. Kit Summary: Elecraft HF-BACKER 200W 6146 AMP KIT Elecraft POWER/SWR METER Elecraft QRP Portable VERTICAL ANTENNA Elecraft QRP Portable ZEP END ANTENNA Elecraft QRP Portable LOOP ANTENNA Elecraft Output POWER INDICATOR Elecraft Marine Portable HF ANTENNA Elecraft GOLF SHIRT Elecraft ANTENNA TUNER - SWR/Power. All of these potential product ideas - are suggested to be stand-alone products .... and NOT to be built into any existing (K2) rigs. Rather - share the table, products. It's early, and winter 06/07 is coming. I believe if you design it and offer it - we will come! Thanks, ...I still have 3/4 of a roll of Kester Solder left! Fred N3CSY Cape Vincent, NY __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
In a message dated 5/20/06 7:19:38 AM Eastern Daylight Time,
[hidden email] writes: > 1. A 13.8vdc dual-6146 TUBE AMPLIFIER, separate box, > with view of the tubes ... 200 watt PEP. Nice idea, but it would compete with the KPA-100. A prime rule of marketing is that you don't compete with yourself. I know > > it may sound odd - but TUBES crank it out better than > solid state - no matter what they tell us! I'm a hollow-state fan and builder/user from way back. Please explain how "TUBES crank it out better than solid state". 100 W of clean RF is the same RF whether it comes from silicon or vacuum. I'd buy > > one in a heartbeat. I might, too. But it would be more expensive than a KPA-100, and probably use even more amps. Also bigger and heavier. It would need a DC-DC inverter capable of supplying the plates, screens and grids of the 6146s. Also 1.25 amps to light the heaters. Variable caps and bandswitching, etc. Many custom parts, and the parts would have to be bought new. The big problem, though, would be getting it FCC certified. Elecraft cannot offer the KPA-100 as an external unit because of certification rules. Hams have built the KPA-100 and other amps in separate enclosures, but those are amateur-homebrew-modifications, not a product of Elecraft. Ten Tec made a 50 watt external amp for their QRP rigs - the model 405. Sweet little amp! They had to stop selling it back in the late 1970s when the rules changed. The FCC rules affect kits as well as manufactured rigs. 73 de Jim, N2EY _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
In reply to this post by Fred (FL)
On May 20, 2006, at 7:17 AM, Fred (FL) wrote: > 1. A 13.8vdc dual-6146 TUBE AMPLIFIER, separate box, > with view of the tubes ... 200 watt PEP. I know > it may sound odd - but TUBES crank it out better than > solid state - no matter what they tell us! First, you may be hard-pressed to get 200 watts PEP out of a pair of 6146's. Typically, these babies are 180-200 watts INPUT. Second, your statement about tubes cranking it out may have been true 25 years ago, but solid state rigs have come a long way. The K2/100 can crank it out with the best of the hollow-state finals rigs of yesteryear. This is interesting from a nostalgia viewpoint, but not practical for Elecraft from a business point of view. > 2. A small separate POWER/SWR METER, hf, 160-10 > or 80-6, 15/200 watt range, KIT. BNC/SO-239 > I/O's It would be especially interesting if it had reasonable accuracy, too. > 3. A KIT vertical QRP/100W ANTENNA .... back packable, > with decent SWR and carry-able in form. There are several manufacturers producing such verticals now. I'm not sure how much you would consider kit-able. > 4. A KIT horizontal END-FED-ZEP ANTENNA ... back > packable, with decent SWR in carry-able form. A KIT for this? Two insulators and a hank of wire? > 5. A KIT LOOP HF antenna, back packable, hangable, > plug-together, qrp to 200W. Like the old AEA Isoloop? This might be interesting, but I doubt there's much that could be in kit form. Perhaps if it had automatic antenna tuning. > 6. An in-line POWER OUTPUT INDICATOR (bnc, bnc) > sensitive/viewable to .250 watt variance. > Two (2) versions; NEON, mico-meter. If you've got #2 above, I don't see why you'd need this. > 7. A marine-grade BOATABLE, tossable marine (river, > lakes) portable HF ANTENNA. (Float, water ground > line, tow line, boyant) Not exciting. > 8. Elecraft "Golf Shirt", XXL please! White > please, and some form of cotton/poly - not > cheap. Small K2 on front pocket. Collar, > short sleeve. This sounds cool. > 9. Elecraft HF PORTABLE TUNER Kit; meter, dummy > load option, Elecraft K2 gray, 15/200W ranges. The KAT100 doesn't do this? All you need to add is a dummy load. Bill Coleman, AA4LR, PP-ASEL Mail: [hidden email] Quote: "Not within a thousand years will man ever fly!" -- Wilbur Wright, 1901 _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
> > 1. A 13.8vdc dual-6146 TUBE AMPLIFIER, separate box, > > with view of the tubes ... 200 watt PEP. I know > > it may sound odd - but TUBES crank it out better than > > solid state - no matter what they tell us! > > First, you may be hard-pressed to get 200 watts PEP out of a pair of > 6146's. Typically, these babies are 180-200 watts INPUT. . --------------------------------------------- That was true for linear amps for SSB service but CW purists could crank up the plate voltage to around 900v. and get 240 watts input class C. - maybe 170 watts out. Plans are in the 1975 ARRL handbook. (T9er) . In linear service, 100 watts out would be about max. -------------------------------------------------- 9. Elecraft HF PORTABLE TUNER Kit; meter, dummy > > load option, Elecraft K2 gray, 15/200W ranges. > > The KAT100 doesn't do this? All you need to add is a dummy load. ------------------------------------------------------- I think the KAT100 only does this for the K2. This new kit would be useable for all rigs, like the T1. Rick Dettinger K7MW _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
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