PSU for Aikido (4x 12SN7)

renton1 · 8th December 2011, 08:16 AM

Hello,
I´ve just purchased a pcb for an octal Aikido and want to use four 12SN7. Unfortunately no power supply is provided.
Can anyone recommend a regulated psu for this build. Heating shall be done with DC. B+ at 300 V.

Which cap values are you using in the audio circuit?

Many thanks and best,

Renton

beetel · 8th December 2011, 09:25 AM

Classic Valve Design - Surplus / Single-Run / Clearance / Ooopsies

2nd Aikido PCB and PSU groupbuy

renton1 · 8th December 2011, 09:47 AM

Thanks for the ling. Would be the PS-1 the better option? PS-1 High & Low Voltage Regulator Kit

Bas Horneman · 8th December 2011, 11:34 AM

Quote:

Would be the PS-1 the better option?

Yes I think it would be better. I designed my psu to be a bog standard psu version just so that people would have something to start off with.

renton1 · 8th December 2011, 12:26 PM

Doesn´t it get too close to the max. ratings? 2.5 A heater current @ max., 2.4 A heater current for the 12SN7.

beetel · 8th December 2011, 12:30 PM

The PS designed by Bas uses tube rectifier and pcb cost is only $9.50.

renton1 · 8th December 2011, 12:34 PM

Not sure, what´s gonna be build. My question was regarding the PS-1.

Bas Horneman · 8th December 2011, 12:39 PM

The 12SN7 has a 300mA heater. So the 2.5A max heater regulator supply is fine.

renton1 · 8th December 2011, 12:58 PM

Yes, but if i´d go the 12,6 V route, the maximum Amperes of the PS1 will only be 1,25 A. So says its pdf.

Bas Horneman · 8th December 2011, 01:31 PM

Quote:

Yes, but if i´d go the 12,6 V route, the maximum Amperes of the PS1 will only be 1,25 A. So says its pdf.

Ok. Either way it is inside the rating. Therefore the PS seems suitable to me.

8th December 2011, 08:16 AM	#1
renton1 diyAudio Member Join Date: Jul 2010	PSU for Aikido (4x 12SN7) Hello, I´ve just purchased a pcb for an octal Aikido and want to use four 12SN7. Unfortunately no power supply is provided. Can anyone recommend a regulated psu for this build. Heating shall be done with DC. B+ at 300 V. Which cap values are you using in the audio circuit? Many thanks and best, Renton

8th December 2011, 12:39 PM	#8
Bas Horneman diyAudio Moderator Emeritus Join Date: Apr 2002 Location: The Netherlands Blog Entries: 18	The 12SN7 has a 300mA heater. So the 2.5A max heater regulator supply is fine. __________________ Boatanchor amps forum My "adventures" in audio

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
WTB: Want to buy 4x PSU Caps 15000uF 100v Epcos, Rifa, for Adcom GFA 555ii	bandolino	Swap Meet	3	29th December 2010 04:02 PM
modelling PSU for Aikido	cbutterworth	Tubes / Valves	16	1st December 2007 03:21 PM
New PSU for Aikido?	cbutterworth	Tubes / Valves	5	6th September 2007 01:03 AM
WTB: Aikido PSU	habsrock93	Swap Meet	23	13th July 2007 11:23 PM
Aikido PSU help	cbutterworth	Tubes / Valves	48	13th October 2006 07:54 PM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read

8th December 2011, 09:25 AM	#2
beetel diyAudio Member Join Date: Jun 2007	Classic Valve Design - Surplus / Single-Run / Clearance / Ooopsies 2nd Aikido PCB and PSU groupbuy

8th December 2011, 09:47 AM	#3
renton1 diyAudio Member Join Date: Jul 2010	Thanks for the ling. Would be the PS-1 the better option? PS-1 High & Low Voltage Regulator Kit

8th December 2011, 12:26 PM	#5
renton1 diyAudio Member Join Date: Jul 2010	Doesn´t it get too close to the max. ratings? 2.5 A heater current @ max., 2.4 A heater current for the 12SN7.

8th December 2011, 12:30 PM	#6
beetel diyAudio Member Join Date: Jun 2007	The PS designed by Bas uses tube rectifier and pcb cost is only $9.50.

8th December 2011, 12:34 PM	#7
renton1 diyAudio Member Join Date: Jul 2010	Not sure, what´s gonna be build. My question was regarding the PS-1.

8th December 2011, 12:58 PM	#9
renton1 diyAudio Member Join Date: Jul 2010	Yes, but if i´d go the 12,6 V route, the maximum Amperes of the PS1 will only be 1,25 A. So says its pdf.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)