Paramour dual transformer upgrade advice?

njcanuck · 5926

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Offline Paul Birkeland

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Reply #15 on: December 29, 2013, 04:08:14 PM
There should've been a CD with the transformers that has the iron upgrade instructions with it, but if you bought these without plate chokes, I could understand why this might've been left out of the box.

If you PM me your e-mail address, I can send you a download link.

-PB

Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man

Offline Natural Sound

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Reply #16 on: December 29, 2013, 04:09:04 PM
You should have received a set of instructions. If you didn't (mine didn't) PB can hook you up with a download link.

EDIT: You beat me to it Paul. :)
« Last Edit: December 29, 2013, 04:13:01 PM by Natural Sound »


Offline njcanuck

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Reply #17 on: December 29, 2013, 04:45:25 PM
PM sent Paul - Thanks.

(Yes, ordered without chokes).

. . . And received. On a Sunday night no less!  You guys are great!!
« Last Edit: December 29, 2013, 04:59:45 PM by njcanuck »


Offline njcanuck

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Reply #18 on: December 31, 2013, 12:57:27 PM
Installed the new outputs last night.  Only had a couple of hours to listen so they are still breaking in.  Sounding very good, though. Still using a 4uF parafeed cap so need to play with that value next.

Think I'll also sandwich the hum pots between 22 ohm resistors, Stereomour style, for finer resolution.  Anyone know if additional circuit mods are required for this change?

Thanks Bottlehead Team!


Offline galyons

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Reply #19 on: December 31, 2013, 01:02:43 PM
Quote from: njcanuck on December 31, 2013, 12:57:27 PM
...

Think I'll also sandwich the hum pots between 22 ohm resistors, Stereomour style, for finer resolution.  Anyone know if additional circuit mods are required for this change?

Thanks Bottlehead Team!

You will need a 10 ohm pot to stay near 50 ohms total.

Cheers,
Geary

VPI TNT IV/JMW 3D 12+Benz LP-S>  Eros + Auralic Aries + ANK Dac 4.1 >Eros TH+ Otari MX5050 IIIB2 > BeePre >Paramount 300B 7N7 > EV Sentry IV-A

Thorens TD124/Ortofon RMG-212/SPU >Seduction > Smash^Up> Paramour 45 MQ >K12's

Offline njcanuck

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Reply #20 on: January 01, 2014, 11:13:28 AM
That makes sense - thanks.  None of those it my parts bin so this will have to wait until the next Mouser order.

The new transformers are settling in nicely.  Bass is noticeably improved even with the existing 4uF cap.


Offline njcanuck

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Reply #21 on: January 05, 2014, 03:47:02 PM
Ok, I'm sold!  These outputs are a very nice upgrade.  Clarity and detail is superb.  The Paramours have wonderful synergy with the Hornshoppe Horns.

For experimentation sake, I tacked the old Solen 3.3s in along side the Sonicap 4s for a total of 7.3uf parafeed.  To my ears, it just added a touch of muddiness and confusion to the sound.  I pulled them out again just as quick.  The Sonicaps sound excellent by themselves.

While I was underneath, I rewired one of the 12AT7 sockets to use the other half of the triode.  I plan to swap 12AT7s back and forth every once in a while to "hopefully" even the wear and prolong the life of my beloved RCA blackplates.

Thanks for the help everyone.


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