paul_5 Posted February 2, 2013 Posted February 2, 2013 Anybody got a DOD FX25 (Rev G) that they don't mind unscrewing an photographing the solder side of the board? Got an old one that I'm trying to resuscitate. Cheers, Paul Quote
icastle Posted February 2, 2013 Posted February 2, 2013 How about [url="http://i748.photobucket.com/albums/xx124/czech-one-2/IMG_2317.jpg"]this[/url]? Quote
paul_5 Posted February 2, 2013 Author Posted February 2, 2013 Cheers i, got that one, but I think it's an earlier version with a different opamp. Might be worth closer inspection though... Quote
icastle Posted February 2, 2013 Posted February 2, 2013 Ah, this one's a REV A version using a 4558 dual op amp. Quote
paul_5 Posted February 2, 2013 Author Posted February 2, 2013 Ah, mine's a Rev G using an LM1458. I'll check the pinouts... ...and they're the same! Quote
icastle Posted February 3, 2013 Posted February 3, 2013 You need to be looking around TR3 (label Q3) 2N5088 or IC3 (label U3) 4007 Quote
paul_5 Posted February 3, 2013 Author Posted February 3, 2013 Duly noted, will have a play tonight... Quote
paul_5 Posted February 4, 2013 Author Posted February 4, 2013 Cheers iCastle. Turns out it wasn't Q3,'twas a cracked trace. However, while I was in I modified it to be switchable between a low pass filter and a band pass. Awesome. Quote
paul_5 Posted February 4, 2013 Author Posted February 4, 2013 Yup, it squelches like a fat bird doing 'armpit farts' in a bath of warm swarfega. Quote
icastle Posted February 4, 2013 Posted February 4, 2013 [quote name='paul_5' timestamp='1360014991' post='1963688'] Yup, it squelches like a fat bird doing 'armpit farts' in a bath of warm swarfega. [/quote] I think I'll just have to bow to your experience there... Quote
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