Re: [Elecraft] k1 battery option and mods
I wholeheartedly endorse the comments by Jim, K4ZM. The back light is really nice. I use a pack of 10 x AA sized 2700 mAH NiMh cells in a battery holder inside a plastic project box. The battery pack has a solid state self resetting fuse and short cable to the K1. It is charged with a small home made variable voltage/current bench power supply. 73 Dave, G4AON K1 #1154, K2 #1892, K3 (fingers crossed) < #200 ___ 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
Re: [Elecraft] k1 battery option and mods
Henning: I have K1 #1423, my only HF rig at this time, 4 bands. I have always used an external battery, a bit more bulk but I did not have to disturb the insides of the K1, or worry about battery leaks. I first built the K1 using 150KHz range for the tuning. Tuning was much too difficult to use. Since then I have adjusted the tuning range several times, now it is back to about 80 KHz. I miss having a larger tuning range and I want more bands, a K2 or K3 will fix that. Hilsen fra USA. 73, Ty, W1TF ex OX5BT --- "Henning V. Mikkelsen" <[EMAIL PROTECTED]> wrote: > Hi all > Just acuired a secondhand K1 and I'm thinking about > adding the battery > option > and hope to get some coments on the usability of > this option > > If anyone has made a drawing of the metal plate that > goes inside, I would > like > to receive a copy. I'm going to make some mock-up > before ordering the > option. > I'm also thinking about making one or two other > mods. Especially the added > caps for broader tuning range on 40m. and maybe > backlight. > But other sugestions on mods for the K1 are more > than welcome. > > 73- Henning OZ4XF > > Need a vacation? Get great deals to amazing places on Yahoo! Travel. http://travel.yahoo.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
[Elecraft] k1 battery option and mods
Henning: I would not install the internal battery option. It requires that you install a smaller speaker and there is always the danger of the batteries leaking and damaging the board in the K1. It is very easy to make up a small battery pack and a short cable to connect it to the radio. Additionally you have to remove the batteries to charge them if you use ni-cads. I use a small 12volt 2.2 amp gel cell which will operate the K1 for most of a weekend. One other thing is that the option provides for only eight AA cells and they will only produce 12.0Volts at maximum voltage when using standard AA, only 10.8 Volts when using nic-cads, and the Gel Cell will provide about 13.8 Volts at maximum. The output power of the K1 is directly proportional to the input voltage supply. I installed the internal battery in my K2 and later removed it because of the danger of the leaking battery and the fact that it made the K2 much heavier. I would not install the extended coverage in the VFO because the tuning becomes very touchy. One rotation of the knob causes a much greater change in frequency. In the 80KHz setting you have about 8KHz per revolution of the tuning knob and in the 180KHz setting it is 18KHz per revolution. I love the backlight option and highly recommend it to you. It is very easy to install and makes the K1 much nicer when operating at night. Please understand these are my personal observations and preferences. You may have other reasons for making the changes. Jim Younce K4ZM K2 SN:18 K2 Field Tester ___ 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] k1 battery option and mods
Hi all Just acuired a secondhand K1 and I'm thinking about adding the battery option and hope to get some coments on the usability of this option If anyone has made a drawing of the metal plate that goes inside, I would like to receive a copy. I'm going to make some mock-up before ordering the option. I'm also thinking about making one or two other mods. Especially the added caps for broader tuning range on 40m. and maybe backlight. But other sugestions on mods for the K1 are more than welcome. 73- Henning OZ4XF ___ 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
