"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 to the R-4C manual, the measured voltages indicated on the schematic were measured with 120 volts AC line voltage. Other things that might affect B+ voltage are C163. Just like human beings, electrolytics have a limited life span but this is the last thing I would check. Besides the AC line voltage, be sure to measure the value of R114, a 150 Ohm 2 watt carbon composition resistor. Those can change drastically in value, particularly when stored for long periods in a hot and humid environment.
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] Sent: Saturday, December 24, 2005 2:22 AM To: [email protected] Subject: [drakelist] R4C +B Voltage [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?? May I have any suggestions about this cause? 73 de JA2JVC Ishii ---------------------------------------------------------------------- Submissions: [email protected] Unsubscribe: [EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost: [EMAIL PROTECTED] - help in body of message Zerobeat Web Page: www.zerobeat.net - sponsored by www.tlchost.net ---------------------------------------------------------------------- ---------------------------------------------------------------------- Submissions: [email protected] Unsubscribe: [EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost: [EMAIL PROTECTED] - help in body of message Zerobeat Web Page: www.zerobeat.net - sponsored by www.tlchost.net ----------------------------------------------------------------------
