February 10, 201610 yr 625 mW is more than enough. Max power dissipation of mpsa/w06 is less than 60 mW.
February 10, 201610 yr Yeah and the NTE stuff is usually just general replacements for something else.
February 11, 201610 yr thank you I think last question, Can I flip all component on the other side of the boards to get the tube almost alone on one side ? All component exept no flipable component like the lsk389 or the STN9360
February 11, 201610 yr 4 minutes ago, charlo89 said: thank you I think last question, Can I flip all component on the other side of the boards to get the tube almost alone on one side ? All component exept no flipable component like the lsk389 or the STN9360 Or just put the tubes/trimmers on the underside... much easier than all the other components. Edited February 11, 201610 yr by johnwmclean
February 11, 201610 yr 20 minutes ago, johnwmclean said: Or just put the tubes on the underside... much easier than all the other components. My board was not design to put the tubes on the underside, and the 6S4A is a 9 pins socket, I can't flip it with the same layout
February 12, 201610 yr On 11/02/2016 at 4:26 AM, charlo89 said: thank you I think last question, Can I flip all component on the other side of the boards to get the tube almost alone on one side ? All component exept no flipable component like the lsk389 or the STN9360 Looks like you worked it out yourself! I guess you could populate the board normally and fasten it upside down to the top panel of your chassis. Then use short wires from the bottom of the board to tube sockets bolted to the underside of the top panel. However that raises the problem of adequate heat sinking as they don't tend to work too well upside down! Maybe you could use something like a http://uk.farnell.com/amec-thermasol/mhp-1220a-100a/heat-pipe-ultra-flat-1tx100l-mm/dp/2290468 to replace the big sinks, (you'd need to size that appropriately) fastened between regs/mosfets and the top panel. But then it's getting complicated and you'd probably be better just getting modified boards made, or use connectors like I did!
February 14, 201610 yr On 12/2/2016 at 0:14 PM, valve5425 said: Looks like you worked it out yourself! I guess you could populate the board normally and fasten it upside down to the top panel of your chassis. Then use short wires from the bottom of the board to tube sockets bolted to the underside of the top panel. However that raises the problem of adequate heat sinking as they don't tend to work too well upside down! Maybe you could use something like a http://uk.farnell.com/amec-thermasol/mhp-1220a-100a/heat-pipe-ultra-flat-1tx100l-mm/dp/2290468 to replace the big sinks, (you'd need to size that appropriately) fastened between regs/mosfets and the top panel. But then it's getting complicated and you'd probably be better just getting modified boards made, or use connectors like I did! Thank you for your answer, I think I will use this PCB http://www.ebay.com/itm/10pc-CMC-9pin-tube-socket-Adapter-bare-PCB-for-EL84-12AX7-6BQ5-ECC83-ECC85-6P14-/191208473634?hash=item2c84e9c422:g:slcAAOxyUfFTlc8q This socket www.ebay.com/itm/1PC-High-Quality-Ceramic-9Pin-B9A-Vacuum-Tube-Socket-For-12BH7-12AU7-ECC83-EL84-/191688017575?hash=item2ca17f06a7:g:ZkAAAOSw5dNWmODJ Fix everything to the chassis with this http://www.ebay.com/itm/2PCS-34mm-12AU7-Vintage-Tube-Audio-Matting-Machined-Aluminum-Decorative-Ring-DIY-/201496427354?hash=item2eea1f7b5a:g:eX0AAOSwKtlWij~P And wire the tube pcb to the KGST pcb with a molex connector as you did
March 23, 201610 yr Thank you doctor Kevin Gilmore , did KGDT to ECC99, voltage of +-370 volts , the sound is pleasing . Not possible to insert a photo http://forum.vegalab.ru/album.php?albumid=865 The page you are trying to access is not available for your account.
June 20, 201610 yr At last finish my KGST. This is my first completed KG project cased. Please I like any suggestion to improve my future build. It's a long road finding machine shop locally to cut the ventilation hole with an old milling machine.
June 20, 201610 yr Looks good and the only thing I would have done differently is to rotate the PSU 180°. That moves the AC wiring to the other side so it's not running with all the DC and output lines.
June 20, 201610 yr Thank you. I will take that into account in future builds. Will modify the wiring run as suggested by the Don
June 21, 201610 yr Thank you for your kind words. Metal work is not my forté. Reason this build is unbalance input is I am saving my very precious 4 ganged alpha pot purchased from the Don years ago for my carbon project. Also I do not own any preamp or source with balance output.
June 21, 201610 yr 36 minutes ago, wokstarr26 said: Thank you for your kind words. Metal work is not my forté. Reason this build is unbalance input is I am saving my very precious 4 ganged alpha pot purchased from the Don years ago for my carbon project. Also I do not own any preamp or source with balance output. OK, but a balanced input is a good alternative... Imagine that in the future, you have a balanced source. You only need to spend a little time and very little money. Edit; My KGST has 3 unbalanced input and 1 balanced input Edited June 21, 201610 yr by jose
June 21, 201610 yr 3 hours ago, jose said: OK, but a balanced input is a good alternative... Imagine that in the future, you have a balanced source. You only need to spend a little time and very little money. Edit; My KGST has 3 unbalanced input and 1 balanced input But by that same token balanced input could just a easily be added later when/if he ever has a balanced source. If it's not ever needed then no harm done.
July 28, 20169 yr On 6/20/2016 at 10:19 AM, wokstarr26 said: At last finish my KGST. This is my first completed KG project cased. Please I like any suggestion to improve my future build. It's a long road finding machine shop locally to cut the ventilation hole with an old milling machine. Well done Fred, I am so glad you stuck with it.That looks very nice.
January 10, 20179 yr Yes. There isn't (at least not on Kevin's server - not sure what Spritzer is hiding in his secret lab ) //UFN
January 10, 20179 yr We never did one of those that I can remember. It would be easy enough to cut the back off the PCB but the connectors would have to be moved.
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