A two rock Gainmaster 35 arrived for a service. It is manufactured by the Premier Builders Guild LLC.  A fancy name! The amps are made in California and are around £2000..  They are built on a printed circuit style board which looks very like tagboard . See in the picture below. This amp is extremely well made and is a relatively simple straightforward design having two pre-amp valves, one phase splitter driving the two 6L6GC […]
We have introduced more new valves which are all now in stock. We now have the more specialised valves that are used in Ampeg and Peavey guitar amps. Â The Electro Harmonix 12DW7 ( also known as the ECC832) is a double triode and in this valve one half is like an ECC83 Â ( 12 AX7) with a gain of 100 Â and the other half like an ECC82 ( 12AU7) with a gain of 20. Peavey
A really neat added value benefit of using Tung Sol valves in your amp is their low microphonics. Â During testing at the factory Tung Sol Valves are tested on a vibrating table to ensure they are not microphonic. Â Of course this extra testing adds a little bit to the cost. I first witnessed this benefit in my own original silverface Fender amp. Ever since it was new way back in 1970 the amp was always
Why did that valve suddenly stop working? I thought it might be useful to look at what the common failures in valves are as they age. I have had a number of folks ask me why their amp suddenly started blowing fuses. My first recommendation is to replace the fuse , unplug the valve rectifier and see if it still blowing fuses. More often than not, the amp stops blowing fuses when the rectifier is
Valves Tubes Be Careful What you buy ! There are many vendors of valves and tubes and I thought it might be useful to make a list of my observations in the market.  Of course I cannot be totally un-biased as I sell valves/tubes on this site and we sell  limited selection of what we offer on Ebay too. Now I am not  criticising at any sellers but some clearly are less technically capable than
Tung Sol Valves Now In Stock – Made in Russia We are expanding our product line and are introducing  anew premium line of valves/tubes. Tung Sol valves /tubes. We are being supplied directly by the parent company and we are official dealers. We want to offer you a an expanded  our range  valves /tubes  Your amp’ sound is heavily influenced by the valves used in the amp and of course it is everyone’e personal taste.