Bottlehead Forum

Bottlehead Kits => Legacy Kit Products => Seduction => Topic started by: Oldlistener50 on February 13, 2012, 01:13:56 AM

Title: Need capacitor translation (instructions to capacitor markings)
Post by: Oldlistener50 on February 13, 2012, 01:13:56 AM

Ok, first off I am almost a complete newbie on this stuff, haven't put a kit together in several decades.

I need help translating from the actual capacitor markings to the way they are shown in the manual.  I don't want to make assumptions and be wrong.

I have the following capacitors:

400V 333K

WFL 103H 630V A

122K 630B

400V 104K

(two of each).

===================================
The manual is itemized this way:

 .1uF cap = P140J

.033uF cap = P333J

.0012uF cap = P122J

.01uF cap = P103J

So... which is which?
Thanks in advance!

Title: Re: Need capacitor translation (instructions to capacitor markings)
Post by: Grainger49 on February 13, 2012, 01:37:54 AM

You and Bottlehead are the victims of the economic problems.  Bottlehead's suppliers have changed what they stock and Bottlehead has had to buy capacitors made by other manufacturers than they had used for the manuals.  I lucked out and have a meter that measures capacitance.

The P333J listed in the instructions (0.033uF@400V) should be the 400V 333K

The P122J listed in the instructions (0.0012uF@400V) should be the 122k 630B (630V)

The P103J listed in the instructions (0.01uF@400V) should be the WFL 103H 630V A

That leaves the P104J (0.1uF@400V) being the 400V 104K

As I remember the Seduction I built all the capacitors were 400V, that is what I'm indicating above, but it seems that in some cases they can only find the right values at 630V.

Isn't there a 0.47uF as well?

Title: Re: Need capacitor translation (instructions to capacitor markings)
Post by: Oldlistener50 on February 13, 2012, 01:52:04 AM

Thanks man!  Yeah the .47's are the big ones that go on the RCA terminals.

Ok, warming up the iron for the final go!

Title: Re: Need capacitor translation (instructions to capacitor markings)
Post by: Laudanum on February 13, 2012, 02:18:42 AM

For reference, the last chart on bottom of page ...

http://www.electronicsteacher.com/capacitor-chart.php

Title: Re: Need capacitor translation (instructions to capacitor markings)
Post by: Grainger49 on February 13, 2012, 02:22:27 AM

Excellent, I bookmarked it.  Reading is faster than the meter and I have a small parts drawer of unlabeled caps.

Title: Re: Need capacitor translation (instructions to capacitor markings)
Post by: 2wo on February 13, 2012, 12:31:50 PM

Thanks for the link...John