Hoffman Amplifiers Tube Amplifier Forum
Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: Papa Jim on January 26, 2019, 12:01:11 pm
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I'm in need of a signal generator for troubleshooting my amps reverb. Could the calibration output on my Oscilloscope double as a free signal generator if I fed it into the amps input jack. Maybe through a pot though to reduce the 5v down.
If no on the question above would one of these work.
https://www.jameco.com/z/MK105-Velleman-Signal-Generator-Kit-1kHz-Fixed-Frequency_2136930.html?CID=GOOG&gclid=Cj0KCQiAp7DiBRDdARIsABIMfoCb3VBXyx8Tg32jMpsW53evJU6soxoy34IMFWruJ9eIMpMWT2ibbh4aAlpeEALw_wcB
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5V is a lot for a guitar input. Pot it down.
If you are going to spend money, I'd prefer more than a single frequency. I'm shocked Jameco is not pushing one at me, but they do push a Vein Finder.....
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https://www.amazon.com/Generator-KKmoon-Precision-Adjustable-Frequency/dp/B01HM70CMY
Basic XR2206 function generator for a fair price ($14). Reviews are mixed and worth reading.
https://www.amazon.com/Tenma-72-505-Hand-Audio-Generator/dp/B008DJS2GY
The classic TENMA hand-held, $60. It looks like it has a readout but in fact it is a leftover DMM case and the "readout" is only LO BATT. More than enough freq steps for any guitar-tech.
https://www.amazon.com/XCSOURCE-Generator-Adjustable-1Hz-150Khz-TE852/dp/B078P8VH47
https://www.amazon.com/Aideepen-Function-Generator-Triangle-1HZ-500KHZ/dp/B01M1RDPWQ
The Future, now that the XR2206 is out of production. A tiny processor computes the waves. You get more resolution and accuracy; but at ~~$10-$30 you get it through little pushbuttons instead of honest knobs.
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Thanks I had no idea some nice options existed for those prices. Heck I would have already had something before finishing this amp. Lol