http://www.w6pql.com/ N9IWW Thank you in advance _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps -- R. Kevin St
w6plq.com Look in the "Parts I can supply" link on his page. Milled and drilled for the device and the heat sink. He will flow solder, (recommended install method by Freescale and NXP) the device to
Even if the prices were closer I'd go with the AL82. As you said, you've got a chance of fixing it and NO chance of fixing the 1000. If it has a microprocessor on it will fail. Maybe not today, tomor
So...DXE was able to do what so many amp makers and distributors couldn't do. That being *ALL* GU74B production by Svetlana goes to the military, and none to the commercial market. Tim Duffy ought to
In the PC overclocking scene, a lot of snake oil is being sold. Not necessarily. My quad core AMD running at 3.5GHz per core, full tilt, will dissipate 135W. The Zallman cooler I have on mine will ke
There are two versions like they did with the 2500A. One "FCC Approved", and limited to 15dB gain, and the other not. Array Solutions doesn't sell the non-FCC Approved versions. All the OM Power amps
I thought Dishtronix bought TenTec and that RKR were continuing with Alpha. Why would Dishtronics know anything about your 9500? Dishtronix has their own problems. Did you ask about TenTec? They were
The 87A uses 3CX800A7 triodes. It's my opinion that the Tl-922 suffers from an inferior power supply design. The 87A is vulnerable to PIN Diode burn out and the 3CX800A triodes can't stand any mistun
W6PQL tested the NXP BLF188XR, the device he uses in his 1KW amps, and came up with 1100W before hitting 1dB compression and it's a 1400W "peak" device. If I was building one with the BLF189XR I'd st
W6PQL.com He originally started using the LDMOS devices on 6m and up and then built the HF SSPA. I believe the schematics are in the article. I know the spectrum shots are, both before and after addi
Exactly. A computer science axiom which has never failed, "garbage in, garbage out". People just assume mathematical simulations are correct. Werner Heisenberg, the father of Quantum Physics and the
W9AC nailed it. I'm pretty sure the 15 dB limit applies to kits as well. Example, Elecraft KPA500. A home brew amp does not have to stick to the 15dB limit. As for SPE/Expert, they screwed up. Why wo
Exactly. It saddens me that so few seem to know the reason we existed. Prior to the multiple choice tests, Question answers were essay and circuit diagrams needed to be drawn. The "ORIGINAL"justifica
Soldering an LDMOS FET onto/into a copper spreader is not difficult. W6PQL has a video of the process on his site. A heating plate is used to bring the copper spreader up to temperature. Once soldere
Jim, My TS-520 does not have a "power control" like my K3. My fathers TS-450SAT does have a power control. I used to use the 520 on PSK31 and MFSK. I'd tune it for maximum smoke on SSB and then feed
UPS still has dibs on it but doesn't use it. Makes me mad as hell. Somebody ought to petition the FCC to get it back, ahem, maybe "the national amateur radio organization"? On 1/4/2017 2:11 PM, Shon
My initiation was with a 900V AC lab supply in high school electronics class. Somehow I managed to get a finger across both binding posts. Knocked me on my butt. A universal law is if the action is p
Take a look at http://mgs4u.com/. He sells Comet and data for all he sells. On 1/25/2017 2:01 PM, Alan Ibbetson wrote: There is a Comet vac variable on fleabay with the part number CV05-2000G/5. I th
No way a pair or trio of 3-500Z's does 1500W FM/RTTY key down all day. An 8877 won't do it either without having a very big, very loud blower. power, I would pass on it myself. REPLY: Me too. When th
Not very well it doesn't. Ken K6MR -- ORIGINAL MESSAGE --(may be snipped) power, I would pass on it myself. REPLY: Me too. When this amp was first announced I was pretty gung ho for it, but now I'm n