![]() If there is any problem at all PLEASE contact us FIRST before posting feedback. Feedback We take great pride in giving and receiving feedback. Please always give us a chance to make it right before you leave feedback. You have three days to contact us and send back the item the buyer is also responsible for the return shipping. If for some reason you are not satisfied with an item we offer a 100% money back guarantee. We believe in always helping the customer to the best of our abilities, and make all of our transactions smooth and easy. If we do not hear from you and we haven’t received a payment, we will open a case with eBay. We understand things come up and we are willing to work with you as long as you contact us. You MUST pay within 7 days of winning the auction. It’s up to the bidders to determine the value of our products. ![]() more start almost all of our auctions at $.99 with no reserve. We have glowing feedback so please bid with confidence! Our Policy We strive to be the best company we can be through customer service and products. Please contact us with any questions or concerns after reading the entire ad and looking at all the pictures. When we get items into our store, we make sure they are in working condition before we put them up for auction. Whatever accessories come with an item are photographed as well. Products The items you see in the pictures are the exact item up for bid. Serial number 648139 Additional pictures below. Dents and marks throughout which I tried to show in pictures. But the amps still got UL certified.1975 FENDER MUSICMASTER 4 STRING BASS GUITAR W/ SOFT CASE_BWXXX 1975 FENDER MUSICMASTER 4 STRING BASS GUITAR WITH SOFT CASE CONDITION: Good used. In some older Fender amps, the presence pot actually can have a low dc voltage on it - I mean the pot itself. So I think in practice, the only significant risk is that they break eventually, if wired according to regulations. And finally, they have to pass stringent official tests to be able to be used in this application in a production amp like a Fender. They are made as separate units, which then get attached mechanically to the volume pot, and which will have thick plastic sides, thicker than any high voltage wire in the amp. They should be wired only to the neutral side of the mains, which theoretically is at zero volts, or near that - what the switch does is just complete the 'on' circuit. As was mentioned earlier, this is a bit of a safety concern.I'm not crazy about them myself- but I think it's intuitive, rather than rational. I myself, am not wild about on and off switches for high voltage circuits being from the volume knob. As was mentioned earlier, this is a bit of a safety concern.ģ. Be prepared to do some searching for replacements, and if you want NOS, spending even more than what used sweep tubes normally go for.ģ. So replacements are more difficult to find than 6L6s, 6V6s, E元4/6CA7s, etc., and can be pretty expensive (a few years ago, I spent over $90 for a pair of USED 6KD6s, that looked, to be in OK shape, so I'd have a set up backup final/power tubes for a 46 year old Yaesu FTdx-401b ham radio I have, that puts out about 300 watts of power). Unfortunately, ALL sweep tubes are extinct nowadays - they haven't been made in decades. Sweep tubes were originally developed to help run the sweep circuits for TV picture tubes, but were discovered to work fine as power tubes (with certain restrictions needing to be kept in mind - they don't tolerate being out of resonance/tune in radio application ), and due to their low cost (you used be able to pick up replacements cheeep at your neighborhood drugstore), were used in some amplifier circuits. Oh yeah, and don't expect super loud - the amps put out 12 watts of power.Ģ As was mentioned, the earlier versions of the Musicmaster Bass amp use 6AQ5 tubes. ![]() In a way, they're almost like a poor man's Tweed Bassman. They can get pretty dirty sounding, when turned up. If you want squeaky clean sound, a Musicmaster Bass amp isn't for you.
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