Members digital Posted June 9, 2012 Members Share Posted June 9, 2012 i have an old carlsbro tr60 combo... it used to contain a reverb tank but it's been removed by the previous owner... i assume it was a small reverb tank... however, i want to replace it with a new long reverb tank but i don't know which one to pick... do i have to be careful with input/output impedance or is any reverb tank good?... Link to comment Share on other sites More sharing options...
Members Mr.Grumpy Posted June 9, 2012 Members Share Posted June 9, 2012 ...do i have to be careful with input/output impedance... ? Yes, you do. And there's an impedance rating for both the input and output coils...as long as the impedances are matched to the original, you can install a longer reverb tank. I found a Carlsboro schematic on the web, but it doesn't state what impedances are used for the reverb pan. Even though it's a tube amp, the reverb drive and recovery amps are solid state. Link to comment Share on other sites More sharing options...
Members (⌐■_■) Posted June 9, 2012 Members Share Posted June 9, 2012 you do have to be careful with impedance but if there close-ish it should be fine but might make the reverb sound less clear Link to comment Share on other sites More sharing options...
Phil O'Keefe Posted June 9, 2012 Share Posted June 9, 2012 On a less common amp like that, finding the reverb pan details will be the hardest part - once you do, finding a replacement pan should be relatively easy. Here's an article you might find interesting. It won't help you find the information you need on the input and output impedance, but it should explain the basics of the pans and what the codes all mean. http://www.harmonycentral.com/docs/DOC-2554 Link to comment Share on other sites More sharing options...
Phil O'Keefe Posted June 9, 2012 Share Posted June 9, 2012 One thing you might want to try is to post a thread here and maybe on TGP asking other Carlsbro TR60 owners if they could help you out... all you need are the codes that are stamped on their reverb tanks, and you're in business. Link to comment Share on other sites More sharing options...
Members digital Posted June 10, 2012 Author Members Share Posted June 10, 2012 thanks for the help!... btw, i found the impedance for the original reverb tank on another forum... it's around 170ohm input.... new accutronics is ordered... Link to comment Share on other sites More sharing options...
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