dtancm 發表於 2008-5-10 21:30:35

300B Mono block Capacitors and Resistors???

Hi All,
Glad to be part of the HiFi Fever family...
Great Website!

I'm helping a friend to source the below parts for building 300B mono blocks;

Capacitors:
2 x 4uF / 600v Non polarized
6 x 50 uF / 600v Non polarized
2 x 50 uF / 200v
2 x 100 uF / 200v

Resistors:
2 x RCP Non-Inductive,wire wound 880 ohm/50w
2 x Dale wire wound resistor 50k / 25w
2 x Clarostat 50 ohm / 2w

Would be thankful if anyone could tell me where to buy them.
Any command or advise please???

Cheers,
daryl.

accphoto 發表於 2008-5-11 00:07:02

2 x 4 uF / 600v Non polarized
6 x 50 uF / 600v Non polarized

呢的電容香港買唔到,你個朋友考慮改吧。

4uf 600V 應該是燈膽整流後第一級,可考慮改用 47UF x 2, 電壓要看具體電路才知。亦可改訂 solen 4U 630V 但包你 hum 聲四起 ^_^,

6x 50U uf/600V 改用 47UF 500V 代吧。

致於電阻 880 ohms 50W 的是買不到的,可串聯或並聯,但真的要 50W 嗎? wire-wound 重要 Non-Inductive ,呢知電阻可能天價, 一枝 wire-wound 1W non Inductive 要大約 20-30 美金, min order 一個數值 100 枝才做。

請問你朋友知道要找甚麼?

Sorry, i just try to help but really found that it is funny that people do no know what and why shouldthey ask for such things..

samuelsum 發表於 2008-5-11 16:41:06

睇你想買的東東, 可能係個陳年老線路...

50w電阻, 高質的wire-world, 可能只有去到30w

有個香港公司自已有website, 同時也在ebay賣o野去外國, 佢o地有做wire-world
(佢o地做緊usd8一枝)
但唔肯定有你想要的數值 - 你要的電容佢都有...但唔好意思無端端幫人賣廣告 :oops:

間公司個office響火炭...
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