¿ªÔÆÌåÓý

Re: sBitx process no longer starts


 

John - I just made a few resistance measurements on my sBitx. With power turned off and disconnected:

?-- Pin 3 of U7 to case of either driver transistor (free-standing transistors with heat sinks) - shorted. Confirms that 12 Volts is getting to U7.
?-- Tab of U7 to Ground - about 2K Ohms.

Regulator U7 is only powering the SI5351 and a 25 MHz oscillator. It's got an easy life!! Really surprised that it could have failed.

73; Steve, N3SB

Join [email protected] to automatically receive all group messages.