WD phono/PSU III clone

Dave the bass · Post by **Dave the bass** » Wed Oct 29, 2008 1:01 pm

Toppsy wrote:
...................will often attempt to read 'us' in addition to the capacitor!
OK out of curiosity then what reading does it give for DTB little digits?

Specially for you Colin I've just checked. Really. Forefinger-Forefinger I'm 1.08 uF. Forefinger-index finger I'm hovering betwixt 0.89 and 0.56uF.

If I heat myself up with an air gun I might change values. I'll be back in a min....

DTB

Graeme · Post by **Graeme** » Wed Oct 29, 2008 1:13 pm

What are the power cord connectors on these WD amps? I'd like to use the same ones so mine are usable with the WD kits.

Post by **Nick** » Wed Oct 29, 2008 1:41 pm

Best ask Peter, they have been changed to something like locking DIN's I think.

Mike H · Post by **Mike H** » Wed Oct 29, 2008 4:42 pm

Dave the bass wrote:when using the cap function on a Multimeter its VERY important to not hold the legs of the components or the meter leads. Our little fingers look like capacitance to a MM and will often attempt to read 'us' in addition to the capacitor!

Or, subtract the difference?

Dave the bass wrote:
Toppsy wrote:OK out of curiosity then what reading does it give for DTB little digits?
Specially for you Colin I've just checked. Really. Forefinger-Forefinger I'm 1.08 uF. Forefinger-index finger I'm hovering betwixt 0.89 and 0.56uF.

If I heat myself up with an air gun I might change values. I'll be back in a min....

Nice one Dave!

Oo-er. According to my old Fluke 83 I'm usually 380 pF

Mind you that's holding the thick probes only

Graeme · Post by **Graeme** » Thu Oct 30, 2008 4:45 pm

Well, got myself all worked up and depressed over my Tx knowledge (lack of) so went shopping.

Got most of the resistors and some caps.

I also got D1/2/3/4, he looked at it and said 'these will do' and gave me 4 IN5408.

he didnt know what i needed for D5/6 though so ill deal with them later.

Gives me something to do tonight anyway.

Post by **Nick** » Thu Oct 30, 2008 5:14 pm

he didnt know what i needed for D5/6 though so ill deal with them later.

Couple of IN4001 will be fine, or any silicon diode, its just the 0.6v forward drop thats needed.

Graeme · Post by **Graeme** » Thu Oct 30, 2008 5:55 pm

Great, thanks. Another piece of the puzzle

Ill get some pics up tomorrow. Phono III is starting to look a right mess!

Who cares though.

£4 so far

Graeme · Post by **Graeme** » Fri Oct 31, 2008 8:18 pm

Well, PSU III is starting to take shape too.

Didnt know what bridge rectifier was needed for the heaters so i fitted GBU 4J that was removed from my kel84's heaters.

As for D5/6, i had IN4002 so i put those in.

Hopefully that will be ok?

Still cant post pics though.

Post by **Nick** » Fri Oct 31, 2008 8:30 pm

Should be fine. What happens when you try and post pics?

Graeme · Post by **Graeme** » Fri Oct 31, 2008 8:44 pm

Gives me the whole '3 days' '5 posts' thing.

Cant remember when i registered though, should be 3 days now though?

Post by **Nick** » Fri Oct 31, 2008 10:10 pm

Joined: 28 Oct 2008

Maybe tomorrow?

Graeme · Post by **Graeme** » Fri Oct 31, 2008 10:36 pm

Graeme · Post by **Graeme** » Fri Oct 31, 2008 10:37 pm

As you can see, looking a little messy!

Post by **Nick** » Fri Oct 31, 2008 10:40 pm

Graeme wrote:

As you can see, looking a little messy!

Seen (and built) worst

Dave the bass · Post by **Dave the bass** » Sat Nov 01, 2008 10:08 am

Hi Graeme,

I saw over on WD you had to take the bridge out of your '84 for the build. I've got a couple I've removed from bits of old kit, I'll post them to you if it helps you.

Also, update your 'wants' list. I'll have a nose through my parts box

Keep up the good work.

DTB

audio-talk

WD phono/PSU III clone

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