audio-talk

Hi Darren-perhaps there should be one of yours on show as well ?

Hi-just found this while browsing on e-bay !

Never heard of it before.

http://cgi.ebay.co.uk/Rare-JBE-slate-re ... dZViewItem

And this may be of interest as well

http://www.werple.net.au/~kiewavly/transformers.html

Hi Andrew-another amp ?

This may be of interest to you

http://www.geocities.com/stereo20/home.html

Are there any markings on the old transformer ?

BUM !!!

I wanted to go there but i am racing in Northampton on Sunday.

Hi-yes its in the old goods yard at Chappel and Wakes Colne station.The station is on the Marks Tey _ Sudbury branch line which is still in use but it is also the location of the local railway preservation society and they do indeed have steam choo-choos on site. Never been myself but it has a good ...

Hi Dave-your parcel has been posted.

Went to Sudbury main post office,and on market day (busiest day of the week) only 3 of 7 positions were manned !

People queuing outside on the pavement !

Please be careful with the ale fests,we dont want you falling over and damaging more body parts

Hi Dave-who is Deb ?

Have you got a wooman in your workshop ?

Looks like she needs some edukashion !

Hi-my PSU designer wont accept 1N5820 so i have got some others coming,

IR50SQ100 100V @5A.

Might as well try and get it done proper like.

Hi Dave-i have a couple of spare C3g,do you want to borrow one till you get a replacement ?

I can put it in with the step ups !

No hurry for the replacement.

EDIT.i am doing your parcel now so i will put the C3g in anyway.

pre65 wrote:
Just checked my parts box and i have 16 1N5820 which seem to be 20V 3A schottky diodes-will those be better ?

Hi-will these schottky diodes be man enough ?

Hi Nick-the transformer says its 50VA with twin secondarys (i will connect both secondarys together in parallel)-one transformer for each PT15. Cant measure the cap DCR cos its on a tagboard and wired up ! Just checked my parts box and i have 16 1N5820 which seem to be 20V 3A schottky diodes-will th...

Hi Nick-i am using 4 UF5401 diodes to rectify the 9V AC. Hi DTB-i have put together a Bluebell order for the remaining parts i need for the PT15 (resistors,caps,knobs) so i have added my Phono3s resistors to that order . I should be ready to order in a day or so. Thanks for the offer but i will wait...

Hi Nick-thanks very much for those calculations.

In my head it sort of looked right !

I will add some 1R 12W resistors to my Bluebell order.

Hi Nick-i am using the circuit you posted on the WD forum

9v toroid
LM338T regulator
1R5 6W sense resistor
6v (or 6.3V) filament in PT15
1.5A filament current
1K variable pot