So you are thinking of buying a valve (or tube) tester and perhaps wondering where to start. What to avoid - things that look like valve testers 1)The type of tester you want to avoid are "utility testers"that...
Chinese valve or tube amplifiers - are they any good? Well, I've tried out 2 of them from Hong Kong and the answer in a nutshell is they are absolutely brilliant and easily beat much more expensive transisitor...
Military valves have different markings to commercial valves. Most have a CV number (CV = common valve) It is best explained with an example. I recently sold some E88CC or 6922 with the following markings...
A QUESTION OFTEN ASKED, HOW CAN I SEND A PARCEL THATS OVER 5FT LONG? AS THE POST OFFICE WILL NOT ACCEPT SUCH PARCELS. THE POST OFFICE GENERALLY ACCEPT PARCELS UP TO 5FT ONLY. PARCELS ABOVE THIS LENGTH NEED TO...
I don't usually get on my high horse, but I keep on seeing various eBay items that explain how to service your own valve amplifier, etc. Note: For anyone who pooh-whos this and chooses to ignore what I am...
Vintage Guitar Valve Amps Over the years and due probably to some kind of cognitive disorder I have bought, sold, owned, swapped and broken many old valve guitar and bass amplifiers. I am not qualified in any...
The Chinese are turning out some scarily good amplifiers for peanuts these days. They are often made by the same factories that make some well known and expensive British and American amplifiers. Indeed the...
Cleaning: Use warm water and a mild detergent (washing-up liquid or shampoo are ideal). Immerse the item in the warm water and wipe gently with a clean cloth before rinsing thoroughly. Then carefully dry the...
Heatshrink is a very versatile tubing that has over a thousand and one uses. There is a variety of ways to shrink heatshrink tubing and the most popular and best way is to use a hot air gun (paint stripping...
I’m writing this brief guide, as this is a common problem encountered by those who are unfamiliar with rich field/short tube refractors… In all but very rare cases this is not a defect in the scope at all and...
