pp output transformer miniblok2

[chopchip]

is this a good pp output transformer for the miniblok2 amp?

1 PP push-pull 10K 10Watt output transformer 4 VT-25 10 on eBay.ca (item 300438381961 end time 16-Aug-10 01:59:59 EDT)

thanks

 

[DigitalJunkie]

That should work reasonably well. 🙂

Here's the amp,for those interested.
The MiniBlok II Push-Pull Amp: Introduction

 

[chopchip]

That should work reasonably well. 🙂

Here's the amp,for those interested.
The MiniBlok II Push-Pull Amp: Introduction

reasonably well? can you elaborate a little 😀. the design calls for a 28:1 to 48:1 ratio. the ebay ad doesnt specify what the ratio is for the transformer. i have no idea.

so 10k is the impedance of the primary winding? 260 ohm DC Resistor 15 Henry - what does this mean? a henry is a measure of inductance that tends to keep current flowing. the author of this design recomends a hammond 125d transformer which is described as "Primary Inductance 4.48 Henries." is this critical in any way? how is this relevant?

thanks

 

[DigitalJunkie]

Well,with some quick mental math(ie,I could be way off!),something in the range of 6-12K:8ohms would be suitable,10K is right in the ballpark. IIRC,More inductance will lead to a 'fuller' low end.

 

[chopchip]

Well,with some quick mental math(ie,I could be way off!),something in the range of 6-12K:8ohms would be suitable,10K is right in the ballpark. IIRC,More inductance will lead to a 'fuller' low end.

k. great. thanks