Official Blackstaramps Forum

I have the chance to purchase a mint condition HT-5R combo with apparently no electronic issues whatsoever. According to it's current owner it is used about 3 times a week for an hour or so, has a new pre-amp valve and a power amp valve fitted which has been biased. It's serial number starts 201107 ...

A bit of a hypothetical one this. If I were to fit an Output Transformer from a Blackstar HT-5 into a Blackstar HT-1R would this allow me to safely run a 12BH7 as my output valve ? Would any further components need to be upgraded to meet with the demands of the 12BH7 ? Would I gain anything signific...

I have a Blackstar HT-1R combo which hissed like a nest of vipers until I swapped tubes. I finally put in a Ruby HG+ 12AX7 and a Ruby 12AU7 and the overall hiss level (even at extreme gain levels) was dramatically reduced compared to the stock Sovtek and TAD tubes. Background hum was also lower with...