Re: [Elecraft] KBPF3A switching frequencies and performance

2021-05-24 Thread Russ Tobolic via Elecraft
Just an FYI, I found out what the problem is with my modified KBPF3.  I removed the added caps and signal levels returned to somewhat normal levels.  Adding a cap to C2 didn't make sense and attenuated the signals. But Fig. 14 shows adding a cap to C4.   Apparently the ham I bought this from

Re: [Elecraft] T1 Tuner Kit Control Board final check issues

2021-05-24 Thread Don Wilhelm
Erik, Yes, using auto ranging on the DMM can cause false readings.  Try to set the fixed range a bit above the highest expected resistance for the best results.  It all depends on the voltage the DMM applies to the circuit.  Too high a voltage can make ICs and transistors conduct causing a

Re: [Elecraft] T1 Tuner Kit Control Board final check issues

2021-05-24 Thread Erik Tkal
Hi Don, Everything appears correct and in place, already used magnification to check, and individual resistors all seem to measure correctly. I still think it's my multimeter in auto mode. I went back and retried the initial test using manual ranging and if I set the range to 600K it shows a

Re: [Elecraft] T1 Tuner Kit Control Board final check issues

2021-05-24 Thread Don Wilhelm
Since that is the case, check the value of the resistors and check out the soldering under magnification. 73, Don W3FPR On 5/24/2021 3:08 PM, Erik Tkal wrote: Hi Don, Nope, D3 and D4 are correct, and the LEDs check out per the test...

Re: [Elecraft] K3 on 6M

2021-05-24 Thread Tim Tucker
If anyone needs the external 6m preamp for an original K3, I have one I would part with for a reasonable price. Tim, AE6LX On Mon, May 24, 2021 at 7:33 AM Linda M wrote: > > __ > Elecraft mailing list > Home:

Re: [Elecraft] K3 on 6M

2021-05-24 Thread Linda M
__ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list:

Re: [Elecraft] Case for K4

2021-05-24 Thread richard allen
Hello , The important information for you. See the attachment to the email. Password - as235ef Regards __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post:

Re: [Elecraft] K3 on 6M

2021-05-24 Thread Ronnie Hull
Thanks everyone! I Do have the the transverter interface in my upgraded K3 I was just curious! Ron W5SUM Sent from my iPhone > On May 23, 2021, at 11:16 PM, Jim Brown wrote: > > On 5/23/2021 7:35 PM, Ronnie Hull wrote: >> I have a K3 with every upgrade available. What are your opinions of