![]() There are many mods for this amp, we can do them all or just some, we can install new output transformers or speakers or just do the electronics. We are often ask if we can do mods to blues junior amps and yes we do. Email for quoteġ20v to 240v POWER TRANSFORMER CONVERSIONS.ĭue to the popularity of ebay and other online shopping sites we offer a 120v to 240v power conversions service for our Australian customers importing American amps. Some makers don't even use a choke! We can fit Mercury Magnetics transformers or one of our custom transformers to improve tone and reliability. They usually use undersized transformers that run very hot and at there limit all the time. Transformers are the first thing budget amp makers skimp on. Tube amps need big transformers to sound good. If your amp is fitted with a generic, low-budget, tiny, transformers you need an real transformer fitted. We can fit Mercury Magnetics or one of our own Custom transformers to greatly improve tone. Improve the sound quality of any amp with an Output Transformer upgrade. Well if you want something a little more up market please have a look at our latest product, the Angry Ant. Or 5 - 10 watt single ended class A fitted with 1x 6550 or E元4 or 6L6 or 6V6 or anything with an octal base ) with Volume and tone. Novelty tube amps made from old unwanted reverb tanks, 10 watts class A push pull output (2 x El84) with volume and tone. Minimizes damage in the event of power tube failure. $90 plus tubes.įor all tube amps without HT fuses. Requires 6550 tubes and bias change or change from 6L6's to E元4's or most other octal base tubes approx. Install 6550 in your amps for cleaner bigger sound. Switch back to Pentode for full power and brighter tone. 1/3, warms tone, and increases distortion. for class A, double pole switch is required plus wiring $100.Ī Pentode tube wired for Triode operation reduces power by approx. Requires one single poles switch for class AB amps and wiring $90. (point to point wired amps mainly) $80įor 4 power tube amps (100watts or 30watts) reduces power to half. Requires one 12AX7 tube, tube socket and a small amount of components. approx $120īuffered tube output to send socket and tube gain stage on return socket. Also bias test points can be added to measure tube current, individually or collectively. E元4's for the outer tubes and 6L6's for the inner's. This allows dissimilar tubes to be operated, i.e. One bias pot for the outer tubes and the other bias pot for the inner tubes. Alternatively, 2 bias pots can be installed. This mod Installs a bias pots on the chassis to adjust the bias on all power tubes collectively. Requires 2 extra pots, f/s socket and switching circuit. Gives a volume boost as well as a gain boost. approx $120ĭUAL VOLUME AND DUAL GAIN MOD. Includes extra volume control, F/S socket and switching circuit. ![]() Set one higher and hit the switch and you'll be louder with the same gain for solos. The bass from JCM900 amps can be increased with this control and other Mods. Requires one pot, some components and wiring. Installing a Depth control in an amps feedback loop can boost the bottom end. Modern multi-channels amps have the gain already and may have space limitations. please note, this is Mod is best suited to older amps such as Marshall’s. Requires extra tube, tube socket and components. Huge amounts of gain can be achieved with one extra 12AX7 Tube. Small amounts of extra gain can be achieved with component changes in most earlier tube amps. GAIN INCREASE FOR AMPS WITHOUT EXTRA TUBE. This is the single most effective Mod which when done properly and providing that nothing else is wrong, will restore the your amp back to original tone. Remove old tubes and install new ones, re-bias and service. If you can't see the Mod you're after just give us a call or email and we'll tell you if we can do it. We have included approx prices only as price will vary depending on the make and model of the amp, its condition, etc. We don’t Mod solid state amps, just tube amps. We don’t Mod all amps, just the ones we think are worth while. We just listen to what the customer wants from his amp and modify it to achieve this. There are many more, and we may be able to do them. The following is a list of amp Mod's that we do on a regular basis.
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