1A is what is needed in a 9-0-9 configuration (or 9.5), as the rectification is full wave centre tapped, NOT bridge, so the two 9V windings of the R26-90 need to be in series to make 9-0-9.
You need to connect them and check the voltage across the two outer wires. If it measures around zero then reverse ONE winding connections. If it measures 18V then this is correct.
You need to connect them and check the voltage across the two outer wires. If it measures around zero then reverse ONE winding connections. If it measures 18V then this is correct.
Is there an off the shelve transformer I could order or it has to be custom made ?
also is there a schematic with voltage test points ?
also is there a schematic with voltage test points ?
What's the output voltage? My receiver's input sensitivity is just 200mV, bit worried, if it's a good match.
There is no Schematic available for this project but if you have a sift back through the thread, there is a post with test points.
You'll need to get a traffo made up or do what Alan suggests over on the Bigbottle Builders thread...
*****Where all questions about the build should be asked from now on please, everyone*****
Last edited:
Serving suggestion: Maybe throw a link to there (the build thread) in each post here to help stragglers?
Hi Oliver,
The reason I am asking is because I will be having a toroid custom wound for this project. Therefore my question. I really do not want extra components hanging off the edge or sticking up in the air, if at all possible. I can have the LV secondary wound to a higher VA still with the centre tap.
I would also like to order a second PCB, and delivery together with Bas' PCB to The Netherlands. I have corresponded directly with him, and he is happy to receive it for me. If there is an additional cost for the postage to The Netherlands, please let me know, and I will add it to the PCB cost. All going well I will be going over in September for my daughter's wedding and I will get it from him then. I want to try the 6DJ8 build as well, using a single external supply box.
Regards, Kevin
The reason I am asking is because I will be having a toroid custom wound for this project. Therefore my question. I really do not want extra components hanging off the edge or sticking up in the air, if at all possible. I can have the LV secondary wound to a higher VA still with the centre tap.
I would also like to order a second PCB, and delivery together with Bas' PCB to The Netherlands. I have corresponded directly with him, and he is happy to receive it for me. If there is an additional cost for the postage to The Netherlands, please let me know, and I will add it to the PCB cost. All going well I will be going over in September for my daughter's wedding and I will get it from him then. I want to try the 6DJ8 build as well, using a single external supply box.
Regards, Kevin
Yes... but maybe a link to take one right to the "buld" page? 🙂
Sprinkle a few in. Copy paste. It facilitates the activity at little cost.
Addendum: Just like that! ^
Sprinkle a few in. Copy paste. It facilitates the activity at little cost.
Addendum: Just like that! ^
[emoji1787][emoji1787][emoji1787] Buld....I'm not changing it...I keep laughing.
Yes, I intent to try and glean all the nuggets of info from this thread and put it over there.
Hi Oliver, what will the cost be to add another PCB to the one Bas has ordered, please? I can do the PayPal payment as soon as I know.
Kevin
Kevin
Ha! Ok
I have put bas down for two.
Just check the google sheet to make sure I have it right please.
Add your name to the sheet and transfer money through paypal
Bigbottle Group Buy - Google Sheets
Price for UK is £30.00
EU is £35.00
USA & ROW is £37.50
Paypal Friends and Family to o.lockley@mail.com (Not GMAIL)
Address to be provided via PayPal with your payment.
Bigbottle Group Buy - Google Sheets
Price for UK is £30.00
EU is £35.00
USA & ROW is £37.50
Paypal Friends and Family to o.lockley@mail.com (Not GMAIL)
Address to be provided via PayPal with your payment.