Aroma ARC-1000A Manuel d'utilisateur télécharger pdf (Page 106)

tubes age 106

From: Andy Williams <[email protected]>

Subject: RE: [R-390] Tube List For R-390 (non A)

I have a list of tubes & IERC tube shields available as an Excel spreadsheet.

Email me if you want a copy.

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Date: Thu, 30 May 2002 22:13:43 -0400

From: Norman Ryan <[email protected]>

Subject: Re: [R-390] Tube List For R-390 (non A)

Hi, all, Here is a list of the tubes in the R-390 (non A) taken from TM-856 plus

some hints on substituting 12AU7s:

V201 6AJ5 V202 6BJ6 V203 6C4 V204 6C4 V205 6C4

V401 6AJ5 V402 6AJ5 V501 6BJ6 V502 6BJ6 V503 6BJ6

V504 6BJ6 V505 6BJ6 V506 6AK6 V507 12AU7 V508 5749/6BA6W

V509 6BJ6 V510 12AU7 V511 12AU7 RT512 3TF7 (ballast)

V601 12AU7 V602 12AU7 V603 6AK6 V604 6AK6 V605 6082

V606 6082 V607 6BH6 V608 5651 V609 5651 V701 5749/6BA6W

V801 26Z5W V802 26Z5W V901 12AU7 V902 12AU7

Substituting the 12AU7 with 5814A: The 12AU7 can be substituted in some

cases with the 5814A. Be aware that its filament current draw is slightly higher

than for the 12AU7; i. e., 150 ma (12AU7) versus 175 ma (5814A). This will

pose a problem for the R-390 because most of the tubes filaments are wired in

series off the 26.5 VAC.

You can substitute 12AU7s where they are not wired in series with another type

tube as long as you replace BOTH 12AU7s with 5814As. Here is the list of the

series filament circuits in the

R-390 (non A):

V202 V203 V204 V205

6BJ6 6C4 6C4 6C4

V401 V402 V201

6AJ5 6AJ5 6AJ5 (Only three tubes here @ 18.9 VAC plus four chokes wired

in series.)

V501 V502 V503 V504

6BJ6 6BJ6 6BJ6 6BJ6

V505 V506 V511

6BJ6 6AK6 12AU7

V507 V510

1 2 ... 101 102 103 104 105 106 107 108 109 110 111 ... 253 254

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Aroma ARC-1000A Manuel d'utilisateur Page 106