Click here to see the auction. Currently $19.99.
The vintage quality US-made GENERAL RADIO VARIAC type W8MT3VM as pictured . It's in good working order (tested) input 120V , output 0-140V 10Amp max . Note : This selling is final ( no return or refund ) Please buy or bid accordingly. Thanks for looking.
Click here to see the auction. Currently $85.00.
Sprague Powerlytic Capacitor Offered is one Sprague Powerlytic Capacitor 36D302F100BC2A 3,000 uF @ 100 WVDC. New in original box. We are happy to combine multiple items for shipping.
Click here to see the auction. Currently $24.95.
A set of four (x4) original Dynaco speaker TERMINAL BINDING POST for project as pictured. They're pulled , in good condition . Note : This selling is final ( no return or refund ) Please buy or bid accordingly. Thanks for looking.
Click here to see the auction. Currently $15.00.
Soundcraftsmen Power Amplifier Model A2502. In good used condition. Has several scratches, scuffs and chips in the paint. Please see our high resolution photos for more details of condition. If you have any questions about this item please feel free to ask. Thank You. (Please read all OUR POLICY) With all this said below, We work hard to make sure you get your value and money worth, We work Hard to have a 100% positive feed back. If there is a problem. We will work with our policy. To many dishonest people have misused eBay policy's. (WE CAN ONLY SHIP TO INSIDE THE United States) We have made a good effort in testing and making sure that this item is in good working order when possible. We do take high resolution photos of this item. Please examine all photos very closely and enlarge them. The item is stored after photos has been taken, Until item is sold and shipped out. We make all effort to give the best description of this item that we can. This item is used and will have some scratches, dings, scuffs. marks, chipping and wear. Under no circumstances do we ever refund your shipping cost, That you have paid to receive your item,
Click here to see the auction. Currently $199.50.
The PAIR of MULLARD 6GW8 / ecl86 power pentode / high-mu triode tube as pictured . They're used , in good condition ( tested on my tube tester . Where min-good= 65, max-good=120 . Tested Tubes = 100/101 and 102/100 respectively ) . Made at Blackburn site UK . Coded WS2/B811 . Note: You will receive the tubes exactly as shown ( we don't use stock photo) and this selling is final ( NO RETURN or REFUND) please buy or bib accordingly . Thanks for looking
Click here to see the auction. Currently $35.00.
For sale is an amplifier by Realistic model SA-101. It powers on without any problems. I was not able to actually hook it up to speakers or anything to test it out thoroughly, but I see no obvious reasons as to why it wouldn't work. Regardless, this item is being sold as is. No returns or refunds will be accepted. However, shipping will be free and insured for the full amount of this sale. Thanks for looking!
Click here to see the auction. Currently $29.99.
I have listed this before but I am trying one more time. I will ship, but you would have to arrange it. The amp weighs over 100lbs. The output transformers alone weight 20lbs each and cost $800 just 2 years ago...I would also be open to trades for a plasma table, or CNC router setup. For these trades, if you lived within a few hundred miles, we could meet half way. This is the culmination of over a half year of steady work. Dual Mono Block, Push Pull Parallel, 6550EH stereo amplifier. Right around 80 Watts per channel before clipping, set up to reach that with just under 2v input. Can be run without a preamp, from any line source, though you would need volume control. There wasn't much I spared making this thing to say the least. Input is a constant current sunk 5687 long tailed pair. Then into a forced differential 5687 for the driver, also CCS. And for the finale, all 8 of the output tubes, the 6550EH, are also CCS sunk. All of the CCS are cascoded pairs of IXTP08n50D2, and IXTP08n100D2. Controls up top of the chassis to set the operating points of your input, your driver, and your outputs to wherever you like. Right now I'm running them at 8ma, 15ma, and 62ma, respectively. The meters on the front are switchable to show one side of output transformer, the other side, the driver, or the input. And of course, there's one meter for each channel. The two power switches are one for heaters, and one for HT so no cold turn on. The meters on the bottom show the total current for that channel, I've been running it at 300ma+ per channel, for 12 hour days, and she's just chugging away. I think the CCS on the output tubes, forcing balance in the push pull arrangement is pretty cool....but what about DC balance with such a big amp? Well there's also pots sunk into the chassis for that. See the speaker terminals up top? Hook your multimeter up to them, dial in the pot, and have an amp that is within 1/10 of 1ma DC balance! So what are those huge transformers we're balancing? Those are custom order Electra-Print. 3.3K P-P, 100W, -1db (that's right not -3db) from 21Hz-49Khz!. Good for 250ma per side, so they're also loafing along with the 150ma per side they might see with the 6550's....but, again this is where the CCS is so neat. You want to try a completely different operating point, bias them way hot or cool, simple turn the dial, and watch your cathode voltage on the meter, and you're there. Reset the DC balance and your amp is as tight as it gets as far as biasing and matched tubes goes. Oh, and I had jack wire it with 4 and 8 ohm taps. The power supplies are completely separate for both channels. The filtering is C-L-C-R-C, and the values are 66µf-10H-120µf-100?-220µf. Then, there's an extra 400? and 60µf for the drivers, and a further 660? and 60µf for the input. Stable voltage, overkill I know. But I wanted very tight voltage and NO electrolytic caps. That's right, not a single electrolytic in the whole thing. No replacing capacitors down the road. Also, as you can see in the pics, all grounds return to center taps via 12ga. ground bus. The box is 3/4" Maple. The trim is Redwood/Maple. The lid is 1/8" aluminum (aircraft). All the wiring is teflon/silver wire. The heater supplies are separate for every pair of output tubes, and for both channels in the front end so no crosstalk coupling. Coupling caps are 1000V Gudeman hermetically sealed .22uf. And real NOS, not pulls from some other piece. Heatsinks for the PP CCS are on nylon standoffs, with the Mosfet touching the heatsink and also the chassis, so effectively the Mosfet see's a HUGE heatsink, as they are right underneath the OPTs. The driver and input CCS both have overrated heatsinks as well. Something like this is an investment for sure. I have over 2000$ just in parts, and would be happy to break it all down for you. It's a special thing to be able to drive 86db/1W/1M speakers louder than I can handle, with a tube amp. This thing opens up some doors for speaker lovers who have had to traditionally use SS. I've included a bunch of pics, but there's so much more to say and show. If you're interested let me know. I'm happy to talk on the phone, always open to trades, and welcome any questions. Thanks for looking.
Click here to see the auction. Currently $1200.00.
Genuine US-made circa 1957 RCA 12AU7A ( ecc82) preamp TUBE as pictured. It's in good condition : (tested on my tube tester. Where NOS tube normal ranged 105-110 , min-good=65, max-good=120 . Tested tube = 102/101 respectively . No short no gas ) Tube feature : Square getter, long ripped gray plate , Note : You will receive the tube exactly as shown ( we don't use stock photo) and this selling is final ( NO RETURN or REFUND) please buy or bib accordingly . Thanks for looking
Click here to see the auction. Currently $35.00.