Giveaway / Raffle - Classic Aleph 30 amp boards + more (2023 Edition)

Member
Joined 2018
Paid Member
Thank you all for participating! :cheers:

Congrats to Brian!!! Please send me a message to work out shipping and power supply details.

Ironically - before starting the drawing I put on a Tragically Hip record. And I think BG is from Toronto.
  1. brian.goodman 1.5 Mighty ZenMod
  2. liva
  3. merlin el mago
  4. lolo6990
  5. Potepuh
  6. lene
  7. Abx74
  8. Chris Jones KS
  9. biju55
  10. Har297
  11. mbose
  12. tonyp063
  13. adason
  14. randyvickery
  15. emuffler
  16. geoturbo
  17. Prodigy85
  18. avtech
  19. analogdiy
  20. rockies914
  21. lydlaug
  22. BrianGasberg
  23. TungstenAudio
  24. E_Fortier
  25. beeah
  26. manniraj
 
  • Like
Reactions: 9 users

6L6

Moderator
Joined 2010
Paid Member
1686592318021.gif
 
Removing myself. Things happened & I will not be able to meet the requirements.

  1. brian.goodman 1.5 Mighty ZenMod
  2. liva
  3. merlin el mago
  4. lolo6990
  5. Potepuh
  6. lene
  7. Abx74
  8. Chris Jones KS
  9. biju55
  10. Har297
  11. mbose
  12. XXXXXX
  13. adason
  14. randyvickery
  15. emuffler
  16. geoturbo
  17. Prodigy85
  18. avtech
  19. analogdiy
  20. rockies914
  21. lydlaug
  22. BrianGasberg
  23. TungstenAudio
  24. E_Fortier
  25. beeah
  26. manniraj
 
This will be a two step build - to meet the 2 month deadline, a stereo amplifier using an existing chassis, then once snow falls, monoblock builds.

Will need donuts and heat sinks, so looking for advice on sources - either Canadian sources to avoid customs/brokerage fees, or sources that have reasonable shipping rates to Canada.
 
Member
Joined 2014
Paid Member
Regarding the transformer, check Ebay for new or used units in Canada. I have searched and sometimes have found things... However, Antek is a really great deal and I have had nothing but great luck with them. I have ordered all but one transformer from them. However, they are in the USA. I tend to go oversized by quite a bit which seems to result in a very quiet transformer.

I believe Noratel is in Canada but they are less straightforward. Great transformers though. Plitron (which was used in Pass Labs amps) is now I believe owned by Noratel.

You can check Mouser, digikey and newark to see if they have any transformer stock in Canada.

I suspect you would want a 200va per channel if you are going dual mono. I would persoanally look for 300va or 400va per channel so you could repurpose the transformers for a couple of future single power supply builds down the road. The cost difference would be nominal. 18vac 300va is a very popular transformer choice for alot of designs around here. From Antek the difference is $10 or $16 per transformer.

You can also look for something with 4 18vac secondaries (less common) which would still work for your dual mono setup.
 
Member
Joined 2002
Paid Member
I'm not tried them but Sumr is in Toronto: http://www.sumr.com/audio.htm
I don't know if Noratel deals with hobbyist quantities. Plitron used to be reasonably DIY friendly. Then there was a change in managment and the min order grew higher and higher and by the time of its acquisition by Noratel, it would only deal with manufacturers.

I would give serious consideration to just getting a pair of transformers from Antek, for example https://www.antekinc.com/as-4220-400va-20v-transformer/?

If you use USPS shipping then the worst that will happen is you will be assessed HST + $10 handling fee through Canada Post, as opposed to the nebulous and obscene brokerage fees from the big courier companies.

Good luck with your build.
 
  • Like
Reactions: 1 user
Member
Joined 2018
Paid Member
V8 is CRCRC (actually CCRCRC), so you'll get very low ripple out of the gate. Standard A30 would be 18+18V donut. I run my A30's with 20+20 donuts. If you're going with SLB you might want a 22+22 ish. Check the SLB docs on that. I have an outboard chassis with SLB, but I forget the donut voltage. It runs an M2, so stanard 24V First Watt PSU is required.

The V8 voltage limit is based on the caps you choose. More than 18+18V donut, get 35V caps. Then you're good for 20+20, 22+22. 22+22 with V8 will push the heatsinks depending on what you're using for a chassis.