Irecently changed my K1's VFO range. Now I can reach 7150 on 40 meters. On 80 (with my 2 band 160/80 meter RF board) I get up to around 3673. I also tried the 1 mf cap in AGC circuit with no results.
73, Sandy W5TVW ----- Original Message ----- From: "Rick Dettinger" <[EMAIL PROTECTED]> To: <elecraft@mailman.qth.net> Sent: Wednesday, April 05, 2006 2:53 PM Subject: [Elecraft] K1 VFO frequency range change | I changed the VFO frequency range capacitor to 120 pf and now have a 178 khz | tuning range. Since I only need 125 khz to reach the SKCC frequency of | 7120 khz, I may try a 100 pf capacitor. I would like to know what types of | capacitors will work will here. The 68 pf capacitor is a disc ceramic and | the 120 pf capacitor is a polystyrene type. To make this change, I not | only needed to change the VFO capacitor, but also the 30m xtal and futz | around with the turn spacing on the VFO coil to get the proper VFO range. I | do not find the 18 khz per revolution tuning rate to be difficult but it is | my nature to keep fussing. 73 - Rick - K7MW | ----- Original Message ----- | From: "Rick Dettinger" <[EMAIL PROTECTED]> | To: <elecraft@mailman.qth.net> | Sent: Monday, April 03, 2006 10:12 PM | Subject: [Elecraft] K1 AGC time constant | | | > I changed C31 on the RF board to 1uf but it still seems very slow. When | I | > remove an S9 siginal (50uv) it takes about 15 seconds for the S meter to | > decay to one bar. I used a non polorized electrolitic cap as that is what | > they had at RS. It is physically larger than the original cap but there | is | > plenty of room. I am not sure what a non polorized electrolitic capacitor | > is but there are no polarity marks, which I haven't seen before. Should | I | > try a smaller value for C31? Thanks - Rick - K7MW | > | > _______________________________________________ | > Elecraft mailing list | > Post to: Elecraft@mailman.qth.net | > 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 | | _______________________________________________ | Elecraft mailing list | Post to: Elecraft@mailman.qth.net | 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 | | | | -- | No virus found in this incoming message. | Checked by AVG Free Edition. | Version: 7.1.385 / Virus Database: 268.3.5/301 - Release Date: 4/4/2006 | | _______________________________________________ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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
