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Old 3rd May 2013, 06:46 PM   #1681
Telstar is offline Telstar  Italy
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Mine hasnt seen the light yet. I'll build it next month hopefully.
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Old 3rd May 2013, 07:22 PM   #1682
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Has anyone noticed a difference in power output with bulb/resistor/CCS vs choke, relative to the same loudspeaker?
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Old 3rd May 2013, 08:44 PM   #1683
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Quote:
Originally Posted by generg View Post
I thought I was the only one who could not decide to which version of my amps sound better......nice to have a French compagnion!

in fact with a SS preamp i prefer bypassed source resistor version and with a tube preamp with output coupling cap i can go with battery on source which i prefer to LM317 bias module.. but anyway this sit is a keeper .
potting the 193V is a cheap but fine upgrade
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Old 4th May 2013, 02:22 AM   #1684
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Quote:
Originally Posted by vdi_nenna View Post
Has anyone noticed a difference in power output with bulb/resistor/CCS vs choke, relative to the same loudspeaker?
You bet. The choke is theoretically twice as efficient as the CCS and the
CCS is about twice as efficient as the bulb/resistor.

Depending on voltage and bias, you can get a lot of difference.

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Old 9th May 2013, 02:58 PM   #1685
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Default Antek transformers are back in stock

The AS-4428 is now available for the inductor version. Two 28v outputs and 15v outputs at 400VA. The PDF shows a different voltage of 6.3v instead of 15v but the tech rep reassured me that it was 15v. Here's the site
Antek - AS-4428
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Old 22nd May 2013, 02:21 AM   #1686
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The L'amp part Deux schema shows a 28vac transformer.
The L'amp 193v schema shows a 18vac transformer.

Is the 193v version a misprint or does it require less power for the same output?

Thx

Vin
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Old 22nd May 2013, 04:21 AM   #1687
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I don't think it is a misprint. The spool has higher resistants than the 193v.
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Old 22nd May 2013, 12:10 PM   #1688
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They both should have similar Drain quesant Voltage. The difference is in the Bulb and CCS versions, the supply gives up half it's voltage across these componants to allow full signal swing pos and neg. In the Inductor version, there is almost no Voltage across the inductor in a quiesant state. The varying current and inductive reactance of the inductor creates half the signal Voltage swing.
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Old 22nd June 2013, 08:26 PM   #1689
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Well finally finished mine
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Old 22nd June 2013, 08:52 PM   #1690
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whoa!

what's that wood ?
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