Re: [drakelist] R4C +B Voltage

Greg [EMAIL PROTECTED] made an utterance to the drakelist gang -- Hello My R4C has developed a problem. The +B voltage that should be originally +150V is only +130V. The capacity of the electrolytic capacitor C163 decreases??

[drakelist] R4C + Voltage

Peter Hoon [EMAIL PROTECTED] made an utterance to the drakelist gang -- Hello Ishii, Think first issue is to check one or more electrolytics associated with +150V supply (and maybe others as well). Try this: 1) Mount two

[drakelist] R4C +B Voltage

Peter Hoon [EMAIL PROTECTED] made an utterance to the drakelist gang -- Ishii, In my point 6 in last message, be sure R4C is unplugged from power mains and turned off. Peter

Re: [drakelist] R4C +B Voltage

Ron Wagner [EMAIL PROTECTED] made an utterance to the drakelist gang -- Ishii, I see others tell you to parallel a cap across C163 for a test. I see using a scope etc too. If you are like me, somewhat test equipment poor,

Re: [drakelist] R4C +B voltage

[EMAIL PROTECTED] made an utterance to the drakelist gang -- Thank you. I got a lot of suggestions a lot. I am sorry, those suggestions have not been tested yet. How many volts is the AC output voltage of transformer? There

Re: [drakelist] R4C +B Voltage

Jim Shorney [EMAIL PROTECTED] made an utterance to the drakelist gang -- On Sat, 24 Dec 2005 07:09:05 -0500 (EST), Ron Wagner wrote: you can use a 10uf or so capacitor rated for 200 volts in parallel with a DVM (or analog volt

RE: [drakelist] R4C +B Voltage

Gerry [EMAIL PROTECTED] made an utterance to the drakelist gang -- First, what is the AC line voltage? Right now, I'm seeing 117 volts as I look at my line voltage monitor. What is the typical line voltage in JA land? According

[drakelist] L7 power supply upgrade boards--status

Boys and girls.. It's Christmas eve day and the year is just about kaput. I plan on doing a few more updates to the artwork on the L4/L7 power supply upgrade pcb this week. so, here's the plan 1. if you have ordered a pcb with me, you credit card WILL Be charged in the coming week. The total

RE: [drakelist] R4C +B Voltage

Jim Shorney [EMAIL PROTECTED] made an utterance to the drakelist gang -- On Sat, 24 Dec 2005 10:22:43 -0800, W7RY wrote: No. To measure ripple you simply measure across the filter capacitor with a DVM set to the AC position.

Re: [drakelist] R4C +B Voltage

Jim Shorney [EMAIL PROTECTED] made an utterance to the drakelist gang -- On Sat, 24 Dec 2005 13:02:32 -0500 (EST), Ron Wagner wrote: Yes I mean series. Brain was not in gear this morning. That seems to be going around. I

[drakelist] transceive frequency high on T-4 (and T-4XB)

[EMAIL PROTECTED] made an utterance to the drakelist gang -- hi, Just wondering if there is a way to adjust the frequency offset between the receiver VFO and the transmitted frequency when transceiving (T-4XB in RCVR position).