If you already can control volume on your preamp, why bother with a volume control on the amp?
Max voltage for tk2050 chips is 36v iirc, but it might require a fan, or, may be limited by (maybe) some 35v parts on the board.
Max voltage for tk2050 chips is 36v iirc, but it might require a fan, or, may be limited by (maybe) some 35v parts on the board.
Thanks a lot for sharing this info. Its pretty good actually.
It also tells us about power vs supply voltage 🙂
If you have same data with T3 please share also. We love it 😉
BTW, is the DC voltage you mention at PS connectors level (so about 1,2V less at the amp level due to rectifier) or is this the voltage at the amp ?
Those look good. But forgive my EE ignorance: what is the 1000uF cap for? I didn't see one in the list that directly took 31V in and gave 5V out.
heat sink
Any 5v regulator will work fine. You can build it's circuit according to the data sheet but maximum ripple performance obviously isn't required for a fan. You will need a small heat sink for it. Some people also feed the regulator through a resistor to share the power dissipation but I haven't tried it that way so I don't know what the value would be. Sure originally just used the critical 5v from the TC2000 driver chip for the fan but I hear that the fan degrades the audio output slightly this way.
Any 5v regulator will work fine. You can build it's circuit according to the data sheet but maximum ripple performance obviously isn't required for a fan. You will need a small heat sink for it. Some people also feed the regulator through a resistor to share the power dissipation but I haven't tried it that way so I don't know what the value would be. Sure originally just used the critical 5v from the TC2000 driver chip for the fan but I hear that the fan degrades the audio output slightly this way.
I've used a L7805 in the past and it has worked in the past but it got a little hot as I was using a 32v supply and it was having to drop 27v.
I'm now using a LM317 based circuit, I prefer it as it allows me to easily set the fans speed by adjusting the voltage. 🙂
You can try a little higher than 31V but the risk would raise, using voltage according to the specs would be safer. So the chart is for reference only.
Could I just connect a supply line to a LM317 reg circuit to the Vin terminals like this?
An externally hosted image should be here but it was not working when we last tested it.
Yes that would work, you may want to put a few resistors before the the LM317, in order to drop a few volts. 🙂
But, if you supply the amp with AC, it wont work.
You will have to connect to AFTER the bridge in order for it to work.
You will have to connect to AFTER the bridge in order for it to work.
Could someone tell me how many v2 boards per power supply would be appropriate? I'm looking to do a 5-channel amp. Thanks in advance
Nick said a 600W power supply is more expensive than 2 300W ones, so may be you can consider one SMPS for each v2.😉
Right connection.
And you can calculate the power dissipation (Pd) of LM317 by:
Pd=Vd*I, where Vd=Vin-Vfan.
Use heatsink as big as you can for LM317 to keep it not too warm.
I just grabbed a V2.0 and power supply to hear what it sounds like on my modded MMGs.😀 If I like, I'll probably try a pair of T3s with the separate mono T3e boards.
Expected release date for the T3 mono powerboards for 2 x SMPS
Hi. Been following this lead quite closely and just have a quick question for the maker of these beautiful amps.
When will you be able to sell your T3 kits with the seperate powerboards for SMPS support.
I really would like this to happen soon as i am very keen on getting my Vega's vertically piggybag Bi-amped by your T3's.
BTW do you have any recommendations for a suitable preamp for this setup? Maybe one of those Tube preamps from Arjen Helder? It would need to be suitable for the input sensitivity of the T3's right? Or could i buy any preamp and live long and happy...?
Thanks in advance.
Mads
First post on the forum... Please be gentle...
Hi. Been following this lead quite closely and just have a quick question for the maker of these beautiful amps.
When will you be able to sell your T3 kits with the seperate powerboards for SMPS support.
I really would like this to happen soon as i am very keen on getting my Vega's vertically piggybag Bi-amped by your T3's.
BTW do you have any recommendations for a suitable preamp for this setup? Maybe one of those Tube preamps from Arjen Helder? It would need to be suitable for the input sensitivity of the T3's right? Or could i buy any preamp and live long and happy...?
Thanks in advance.
Mads
First post on the forum... Please be gentle...
Hi, Please contact nick for more information about T3 stock.
For pre-amp, I suggest any one if it's good and the input impedance of T3 is 20kohm that will be suitable for most pre-amps.🙂
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