My first tube amplifier

CKL

Using low power, low voltage, long lifttime tube, easy to build, just follow here:
http://www.pmillett.com/nuhybrid.html

racewong

HIENDY真係好多DIY勁人.

Hifibecheap

Ching利害，幾年前見過這個膽，當時乜都冇，連pin data都唔見。

CKL

racewong 發表於 2018-2-23 16:26
HIENDY真係好多DIY勁人.

慚愧，只不過用了兩小時把零件焊接在一起，根本不是什麼高手

CKL

Hifibecheap 發表於 2018-2-23 19:40
Ching利害，幾年前見過這個膽，當時乜都冇，連pin data都唔見。

If this direct heated triode tube is not a new technology: low power, low voltage and long lifetime, I have no interest of building a tube amplifier.

jeansky

is it a pre amp?

CKL

jeansky 發表於 2018-2-23 23:38
is it a pre amp?

Yes, it has a line output. The voltage gain is around 5 to 6. I guess it can be used as a tube preamp or a tube buffer.

澳門客

好似係日本舊年最新出的低壓胆仔

CKL

澳門客 發表於 2018-2-24 11:39
好似係日本舊年最新出的低壓胆仔

Bingo!!!!!