[R-390] R-390A (non nonA) Tube List

[Norman Ryan]

Ampop wrote:
> 
> Thanks Norman - that certainly was a teriffic effort - that was an
> awful lot more than I expected and all good info.  If you have or
> ever put together a like package for the R390A - I would love to
> have a copy.  Thanks again - I'm new at this game and will put
> the info to good use.  BobW (Drewsampop)


Hi, BobW,

Thanks for the compliment.  The R-390A tube list isn't as complicated. 
Only V505 (5749) and V701 (5749) filaments are in series together with
the ballast tube RT510 (3TF7).  All the others are wired in parallel. 
The 5814A can be substituted with the 12AU7.  The 12.6 VAC filaments are
center tapped and wired at 6.3 VAC.

The R-390A tube list:

V201 6DC6
V202 6C4
V203 6C4
V204 6C4
V205 5814A
V206 5814A
V207 5654

V401 5654

V501 5749
V502 5749
V503 5749
V504 6AK6
V505 5749
V506 5814A
V507 5814A
V508 5749
V509 5814A
V510 3TF7

V601 5814A
V602 5814A
V603 6AK6
V604 6AK6
V605 0A2

V701 5749

V801 26Z5W
V802 26Z5W

There you have it.  If someone says, "RYAN, GET A LIFE!" I'll delete
him!  :-)

73 de Norman KG4SWM