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[#1826] LEAK TL12.1 restoration    
有冇師傅可以幫手維修?Leak 12.1 ?
myfk
個人訊息 正式會員
119.xxx.xxx.208
2025-04-23 16:48
[#1825] LEAK TL12.1 restoration    
#1824
Gorgeous
adrianc
個人訊息 正式會員
82.xxx.xxx.187
2025-03-08 22:25
[#1824] LEAK TL12.1 restoration    

Very much mint looking comb of Varislop II preamp - TL12.1 power amp.

How does its mate look like?
rcwy
個人訊息 正式會員
118.xxx.xxx.29
2025-03-08 12:59
[#1823] LEAK TL12.1 restoration    
My 12.1

adrianc
個人訊息 正式會員
82.xxx.xxx.187
2025-03-07 23:59
[#1822] LEAK TL12.1 restoration    


Nice two pairs!
I wish you can operate them soon.

Pair 1 (on wooden plint) :

They, the internal, look good . The thing to consider is to replace the plastic boxed metal film capacitors with paper-in-oil modern ones. There are lots of offers in the market or internet. 0.25uF/500-600VDC each.

Pair 2 :

These look like for professional use because they each has a input transformer (the black round ones). Interesting further is how you would handle these input transformers? Skip them to make them like Pair 1, or keep them (but then how you would use the amps?).

rcwy
個人訊息 正式會員
118.xxx.xxx.29
2025-03-06 10:51
[#1821] LEAK TL12.1 restoration    
thank you for allowing me to show them.
I am in South Africa.

最後修改時間: 2025-03-05 21:00:44
hennietaljaard
個人訊息 新會員
160.xxx.xxx.66
2025-03-05 20:59
[#1820] LEAK TL12.1 restoration    
Both pairs work but Pair 2 has not been switched on in 10 years and is currently with my technician for a restoration and recap.

Pair 1 was previously recapped by someone else and mounted on a wooden plinth but is working fine. I will remove the plinth soon.

I need a pair of ECC33 for Pair 2.

最後修改時間: 2025-03-05 20:56:21
hennietaljaard
個人訊息 新會員
160.xxx.xxx.66
2025-03-05 20:54
[#1819] LEAK TL12.1 restoration    
Pair 2

hennietaljaard
個人訊息 新會員
160.xxx.xxx.66
2025-03-05 20:13
[#1818] LEAK TL12.1 restoration    
Pair 2

hennietaljaard
個人訊息 新會員
160.xxx.xxx.66
2025-03-05 20:12
[#1817] LEAK TL12.1 restoration    
Pair 2 (SABC)

hennietaljaard
個人訊息 新會員
160.xxx.xxx.66
2025-03-05 20:12
[#1816] LEAK TL12.1 restoration    
Pair 1

hennietaljaard
個人訊息 新會員
160.xxx.xxx.66
2025-03-05 20:10
[#1815] LEAK TL12.1 restoration    
Pair 1

hennietaljaard
個人訊息 新會員
160.xxx.xxx.66
2025-03-05 20:06
[#1814] LEAK TL12.1 restoration    
Pair 1

hennietaljaard
個人訊息 新會員
160.xxx.xxx.66
2025-03-05 20:06
[#1813] LEAK TL12.1 restoration    


Click headline to reply as you has done before
Then click "choose file" to upload your image file (note: only low resolution small file is acceptable by R33)

最後修改時間: 2025-03-05 17:30:20
rcwy
個人訊息 正式會員
118.xxx.xxx.29
2025-03-05 17:28
[#1812] LEAK TL12.1 restoration    
i am not sure how to load photos here
hennietaljaard
個人訊息 新會員
160.xxx.xxx.66
2025-03-05 16:00
[#1811] LEAK TL12.1 restoration    
Will see if I can load photos

最後修改時間: 2025-03-05 15:45:55
hennietaljaard
個人訊息 新會員
41.xxx.xxx.74
2025-03-05 15:43
[#1810] LEAK TL12.1 restoration    
Where can i find a pair of ECC33 valves?

I have 2 pairs of monoblocks.

The one set came from the SABC (South African Broadcasting Corporation.
hennietaljaard
個人訊息 新會員
41.xxx.xxx.74
2025-03-05 15:41
[#1809] LEAK TL12.1 restoration    

Re. #1807

6SN7 可用在12.1 ,在自給偏壓下管子的實際工作參數會自行調整,問題是不大的。

ECC33 當然是最佳的原設計。

最後修改時間: 2025-03-05 10:10:03
rcwy
個人訊息 正式會員
118.xxx.xxx.29
2025-03-05 10:07
[#1808] LEAK TL12.1 restoration    
以前玩12.1時做過少少research. 以下是3隻相似但不同的推動膽比較.

6SN7跟原本線路的ECC33比較. 放大倍數,屏阻同柵極電壓都有眀顯分別.



最後修改時間: 2025-03-04 22:56:34
bambino
個人訊息 正式會員
210.xxx.xxx.231
2025-03-04 22:56
[#1807] LEAK TL12.1 restoration    
Hi
Is the 6SN7 valve good for the Leak 12.1? Is ECC33 compulsory?
hennietaljaard
個人訊息 新會員
41.xxx.xxx.74
2025-03-04 22:19
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