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FERNSEH · 6th Jul 2019, 4:11 pm

Hi John,
The Bush Band 3 converter is a beautiful piece of engineering and as you say must be preserved. It's all too evident that the set was stored at one time in a damp environment so it was essential that the line output transformer was subjected to the warm-up process before any attempt to test the set from mains supply. And the transformer warm-up process was pioneered by your goodself.
The set under discussion is the early version with EF91 valves in the RF deck.
This week found in a box of parts a Bush type 1 preamplifier made specifically for the Bush TV22.
Discussion about the EF91 RF pentode elsewhere in the forum:

https://www.vintage-radio.net/forum/...d.php?t=157399

DFWB.

6th Jul 2019, 4:11 pm	#3
FERNSEH Dekatron Join Date: Mar 2005 Location: Gateshead, Tyne and Wear, UK. Posts: 7,444	Re: Bush TV22 with TC184 B3 converter. Hi John, The Bush Band 3 converter is a beautiful piece of engineering and as you say must be preserved. It's all too evident that the set was stored at one time in a damp environment so it was essential that the line output transformer was subjected to the warm-up process before any attempt to test the set from mains supply. And the transformer warm-up process was pioneered by your goodself. The set under discussion is the early version with EF91 valves in the RF deck. This week found in a box of parts a Bush type 1 preamplifier made specifically for the Bush TV22. Discussion about the EF91 RF pentode elsewhere in the forum: https://www.vintage-radio.net/forum/...d.php?t=157399 DFWB.