Mains |TX wiring Help
- colin.hepburn
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#1 Mains |TX wiring Help
Hi All
Have just received my mains TX from ask Jan. I asked him for wiring plan when ordered but he didn't’t send it I have email him for one but he has not responded there is a label on the TX with pin numbers but this is confusing to me can someone have a look at the this and sketch a wiring plan for me as I'm lost without this and don’t want to blow the TX I thank you for any help you can provide
Notes from AJ's Site
Highly versatile multi purpose 200 VA transformer for use with tube circuits. Primary : 100/127/230 V, can be used worldwide !!! , Secondaries: 2*270 V 0,2 A ; 2* 50 V 0,2 A; 6,3 V 2 A for preamp tubes, 5 V 2,5 A for rectifier and 6,3 V 7 A for heaters of output tubes. B+ secondaries can also be connected in parallel for use with a rectifier bridge. The 50 V secondaries can be used for biasing or in series wit hath 270 V secondaries to get a 320 V plate supply
Have just received my mains TX from ask Jan. I asked him for wiring plan when ordered but he didn't’t send it I have email him for one but he has not responded there is a label on the TX with pin numbers but this is confusing to me can someone have a look at the this and sketch a wiring plan for me as I'm lost without this and don’t want to blow the TX I thank you for any help you can provide
Notes from AJ's Site
Highly versatile multi purpose 200 VA transformer for use with tube circuits. Primary : 100/127/230 V, can be used worldwide !!! , Secondaries: 2*270 V 0,2 A ; 2* 50 V 0,2 A; 6,3 V 2 A for preamp tubes, 5 V 2,5 A for rectifier and 6,3 V 7 A for heaters of output tubes. B+ secondaries can also be connected in parallel for use with a rectifier bridge. The 50 V secondaries can be used for biasing or in series wit hath 270 V secondaries to get a 320 V plate supply
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- TRA 400 TX.jpg (59.91 KiB) Viewed 10688 times
Last edited by colin.hepburn on Thu Oct 04, 2007 3:23 am, edited 1 time in total.
#2
OK, primary first, looks like you want pin 7 = live and 11 = neutral for UK operation.
Next up we'd need to know what you want out of the it? Looks like you can get 270-0-270, for HT, similarly 50-0-50 etc.
You've also got various combo of 6.3v and 5v etc for heaters.
Looks like quite a versatile beasty.
cheers,
-- Andrew
Next up we'd need to know what you want out of the it? Looks like you can get 270-0-270, for HT, similarly 50-0-50 etc.
You've also got various combo of 6.3v and 5v etc for heaters.
Looks like quite a versatile beasty.
cheers,
-- Andrew
- colin.hepburn
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#3
Andrew
270-0-270 v
5v@2.5A rec
6.3@2 A
6.3 @ 7A
Plus maybe 320v for some other amp project
I think pin 5 0v pin 4 270v pin 2 0v pin 1.270 I think so pin 5/1 joined together for 270-0-270 or have I got that wrong
270-0-270 v
5v@2.5A rec
6.3@2 A
6.3 @ 7A
Plus maybe 320v for some other amp project
I think pin 5 0v pin 4 270v pin 2 0v pin 1.270 I think so pin 5/1 joined together for 270-0-270 or have I got that wrong
#4
OK, a bit at a time.
To get a center tap I would connect 4 & 2 togther and ground them as 0v then take your voltage from 1 & 5. So connect the middle two together and ground that, then take your volatge from the outer two pins to the anodes of the rectifier.
I just checked, I recently did same for a Hammond that has twin windings, i.e 0-x and 0-x.
Then for your rectifier's heater, take pin 18 to one end of the rect's heater and pin 19 to the other, then take your B+ off pin 19. Niether of these go to ground, assuming its a regular 5v octal rectifier; the heaters float.
However, can someone give me a sanity/double check?
cheers,
-- Andrew
To get a center tap I would connect 4 & 2 togther and ground them as 0v then take your voltage from 1 & 5. So connect the middle two together and ground that, then take your volatge from the outer two pins to the anodes of the rectifier.
I just checked, I recently did same for a Hammond that has twin windings, i.e 0-x and 0-x.
Then for your rectifier's heater, take pin 18 to one end of the rect's heater and pin 19 to the other, then take your B+ off pin 19. Niether of these go to ground, assuming its a regular 5v octal rectifier; the heaters float.
However, can someone give me a sanity/double check?
cheers,
-- Andrew
Last edited by Andrew on Wed Oct 03, 2007 9:10 pm, edited 1 time in total.
- colin.hepburn
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#6
OK wiring update
Hope I have I right
I left out the 50volt tap not required
Not sure of wiring for 320 volts using 50 volt taps
Hope I have I right
I left out the 50volt tap not required
Not sure of wiring for 320 volts using 50 volt taps
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- colin.hepburn
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#7
Anyone like to give a second opinion on the wiring of my mains TX in post 73 as i am just not sure if i have it right
thanks
thanks
- andrew Ivimey
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#9
Andrew is right - it looks complicated but have you a meter to check 'continuity' on each set of windings?
That will help your confidence in getting the wiring right.
That will help your confidence in getting the wiring right.
- colin.hepburn
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#10
Thanks lads
my meter is Brok i have ordered a new one but i guess i Will have to Wait due to postal strike more delays
my meter is Brok i have ordered a new one but i guess i Will have to Wait due to postal strike more delays
- pre65
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#11
Hi Colin-why not make a continuity checker with a battery and bulb and a couple of bits of wire ?
The only thing necessary for the triumph of evil is for good men to do nothing.
Edmund Burke
G-Popz THE easy listening connoisseur. (Philip)
Edmund Burke
G-Popz THE easy listening connoisseur. (Philip)
- colin.hepburn
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- Location: Scotland Aberdeenshire