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Old 27th January 2013, 06:55 PM   #91
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Boards showed up in California .
Thanks
Mike
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Old 27th January 2013, 11:55 PM   #92
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Recieved my boards in CA, too. They look very impressive!

Thank you very much.
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Old 29th January 2013, 11:58 PM   #93
PKI is offline PKI  United States
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I have a project for this amp on mouser. It contains all parts for Variable 2nd Harmonic layout and parts for PSU board from the diy store. If you want to save some time and use it, just let me know, I'll share it(FYI, total — $115). Or, if you know how I can save-share a project from mouser to post it here or in Tea-Bag blog, let me know :-).
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Old 30th January 2013, 12:06 AM   #94
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Perhaps it's time for a transformer IT group buy?
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Old 30th January 2013, 12:12 AM   #95
Tea-Bag is offline Tea-Bag  United States
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I have asked Buzzforb if he is interested in getting a parts GB together.
I would recommend posting what you would like to see in the GB and post it here, then maybe he can put a desirable parts list to be available for some limited time.

Buzz, if you can chime in, any thoughts?
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Old 30th January 2013, 02:04 AM   #96
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I be more than happy to oblige, it should help with pricing, especially on the bigger stuff like trafos and caps. It would be prudent to start a list of interest. Ill start one on GB section tomorrow.
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Old 30th January 2013, 06:21 AM   #97
zman01 is offline zman01  Bangladesh
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+1 Buzz.
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Old 30th January 2013, 10:51 AM   #98
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I sent Primrose of SumR transformers an email about the possiblity of drop shipping toroids to those who need them. I know there is a need in both the F5T GB and this one to source transformers, so it seems like a good option. Perhaps buyg multiples will bring the price more inline with Antek. It is probably also a good idea to see about which manufacturer of the small 600;600 transformer we would like to order from. Cinemag and Jensen are the best value, with Nelson recommending the Jensen. Tea said he liked it the best, so unless we just want to try the Cinemag because of cost, it seems the Jensen is the option. I could talk to BudP and see if he could make a custom batch for us. It would support a forum member and Bud has done this is whole life, but the choice is evryone's to make. I dont think any of them have them in stock, so it will be a wait. As for other components, we will haev to decide. I like PRP. For the Rs, I would suggest Caddocks or the low PPM Vishay. Throw the opinions out there
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Old 30th January 2013, 06:59 PM   #99
skunark is offline skunark  United States
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I received the boards yesterday and everything looks great.

Thanks again!

Jim
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Old 30th January 2013, 07:25 PM   #100
Tea-Bag is offline Tea-Bag  United States
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Quote:
Originally Posted by buzzforb View Post
I sent Primrose of SumR transformers an email about the possiblity of drop shipping toroids to those who need them. I know there is a need in both the F5T GB and this one to source transformers, so it seems like a good option. Perhaps buyg multiples will bring the price more inline with Antek. It is probably also a good idea to see about which manufacturer of the small 600;600 transformer we would like to order from. Cinemag and Jensen are the best value, with Nelson recommending the Jensen. Tea said he liked it the best, so unless we just want to try the Cinemag because of cost, it seems the Jensen is the option. I could talk to BudP and see if he could make a custom batch for us. It would support a forum member and Bud has done this is whole life, but the choice is evryone's to make. I dont think any of them have them in stock, so it will be a wait. As for other components, we will haev to decide. I like PRP. For the Rs, I would suggest Caddocks or the low PPM Vishay. Throw the opinions out there
I liked Cinemag a little over the Jensen, it had good tone, detail without much effort. Sounded realistic.

The Jensen brought a 'different' tone and maybe more detail. To me it sounded a bit euphonic or something. The most interesting of the bunch. But that is only to my ears. For dead neutrality, the Onetics takes the prize.

I have sent my Cinemag's to Generg to see what his thoughts are, I trust his ears over mine. He notes more variance then I do, but we agree on some fundemental likes, so I guess have similiar impressions.

For resistors, the TX2575 are the cream of the crop, next PRP followed by Dale, but I beleive the tone of the quadfilar transformer will outweigh changes in the resistor chain, as well as how you adjust for second harmonics. Adjusting that made the amp sound quite a bit different. It may be a lot in fact related to the sound of the Caddock power resistors I used.

Count me in for some SUMR transformers Buzz.
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