Hi Jim, Do you have a measurement of the current from the 13.8 volts power supply when the v8.0 (?) is running on various bands? Also do you have a temperature measurement on the 5 volt regulator?
I think the typical current is around 100 mA for about 0.8 watts of heat in the 5 volt TO220 case regulator. 73, Tony KB9YIG ----- Original Message ----- From: James R. Elledge To: [email protected] Sent: Wednesday, May 07, 2008 10:59 AM Subject: [softrock40] SR LITE V8.x SUGGESTION The 7805 VR gets a bit warm when using a 12V or 13.8V power supply, another VR (9V perhaps) between the 12/13.8V PS would help. This technique has been used successfully by others (and myself) to help with the heat problem when using standard 12/13.8 PS's. Jim - KB2XJ
