KATZ Rehearsal Room: 01384 278646 (11 - 2pm) or see KATZ page for alternative KATZ ONLY mobile number

West Midlands,

DY6 7HU

By email: Sales or Enquiries (Click either)

At other times please send an email or a fax for a swift reply. Spares normally same day despatch on receipt of order and payment.

I only bring this to work on Mondays and Thursdays.

So on those days I may be able to answer certain seemingly impossible lunar or extra terrestrial questions.

My apologies if you really ARE from the planet ZARG.

MAJ Electronic was founded in 1974 by Michael and Jane Ameson, to service, repair, design and manufacture amplification and associated equipment within the professional music industry. A woodwork department was set up in 1980 to satisfy the need for more and more cabinets. Case and flight case production, an offshoot of this move, began in 1983. So off we went...

In 1990 old friends Laney Electronics acquired the HH Electronic company of Cambridge and invited Michael to purchase the obsolete stock of this company, and look after the well being of the old HH models. This we did, and still do today. We have continued production of necessary popular replacement pcb's and cosmetic spares for these units, and still produce in house replacement diaphragm assemblies for the CD400/500 compression driver. We NO longer produce the HF200/300 diaphragm assemblies. We provide OFFICIAL worldwide backup, in the form of spares service and technical information, for obsolete Laney and HH products. Many of the original diagrams have been redrawn (for clarity) by Michael.

Here in 2010, MAJ Electronic still have a small but established range of high quality amplification products, which have stood the test of time and continue to sell well despite the onslaught of imported equipment. We also continue to offer our repair service, and supply spares and service info for HH/Laney and other early British amplification products.

We no longer manufacture cases, flight cases, or basic/mainstream empty speaker cabinets. The only loudspeaker cabinets we now make are for our own or high end guitar/bass use, and are generally to customer specifications. They are built from best or specified materials, sizes to order, with choice of finishes. All bespoke and I'm afraid they are NOT cheap.

Michael and Jane have a daughter Katherine, who is now 17! She is studying Maths, History, Psychology, and Law at A level and is pictured above on her recent PROMS night. Ahhh..

RE information please ask your technical adviser or engineer to request this as passed information is meaningless unless given to a qualified person who has the knowledge and NECESSARY TEST EQUIPMENT to make use of it. There are no standard or quick fixes to any of these equipments - all problems and faults need to be addressed from basic principles. It's not rocket science, but from my point of view it is difficult to pass on 39+ years experience of the product (or grant an electronic engineering qualification) in a few emails or phone calls. Sorry, back to school...

With the best will in the world please understand that this is NOT a forum. Ask me a specific question and I will answer it if I can, but please also understand I simply do not have time to get involved in the 47 bat/ball emails syndrome (as I call it). These mails are usually made from an employers computer when the person has nothing better to do or the gaffer is not looking. Chunter chunter chunter. Please understand HE is paying you for your time - which is great until he finds out - mine unfortunately costs money... Thank you. Better still, if you really want a fast answer to a REAL technical question, call by phone 11 - 2pm and I'll try to help. (They should be asleep on Zarg at that time..)

Please note a technical question is not "How many channels does my HH MA100 have" .....

Service manuals for the HH and older Laney products are already available in optional .pdf format on CD rom. We also have a huge inventory of schematic diagrams dating back to the early 1960's including rare VOX, Swissecho, Klemt, Farfisa, Meazzi, Sound City, Dan Armstrong, Linear, and many thousands of others. We have recently introduced a service manual covering the Sound City amps from the early 1970's. Included are the Concord, LB 50, PA50, LB 100, LB 120, 120 Slave, LB200.

Requests for single specific circuit diagrams, whether contained in the manuals or not, can be sent via email in .pdf format. The diagrams are free but there is an administration charge of £5 per request for this service, which must be prepaid by Visa or Mastercard. Note we do not accept bank transfers for this service due to the charges. All service manuals are now £9.95 by email (NEW SERVICE) £10.95 (UK) or £15 (overseas) including postage for the book or CD. CD supplied as default. PAYPAL is a possible payment option now, see PAYMENT and POSTAGE page

NEW! Manual M109A covers Laney Valve amplifiers made from 1969 - 1982 and includes pot and knob data.

NEW! Manual M109B covers Laney AOR and Protube amplifiers made from 1984 - 1992 and includes a model identification chart, transformer, pot, and knob data.

PLEASE read this paragraph VERY carefully:

Note all our manuals are original HH Electronic copyright and all contain good readable digitally cleaned scanned original diagrams as well as descriptions, footswitch data, and fault finding tips written by Michael where applicable. We like to give value for money, and in this life you only get what you pay for. There again you might have spotted that already..

Oh and if you have possibly downloaded a freebie HH or Laney diagram from the net (saves paying us £5) but then (as usual) need further advice or assistance I suggest you pester them not me. I'm rather busy right now as it happens - dealing with paying customers etc..

HH IC100/IC100S/IC100L/VS Musician/VS Bassamp/MA100 etc. Original knobs are NO longer made or available. We have two options to replace these: 1) Our official replacement is sized between the large and small originals. They are chrome electroplated with knurled sides (rather like a Telecaster knob) and look very good. 2) Send in the old knobs and we will refurbish them - our charge is £2.50 per knob with a minimum order of 10 knobs. For full details of how to do this yourself see our M101 service manual. Better wear your finger out than mine laddie...

HH Performer/Power Baby/Super60/Bass machine/Bass Baby/Studio 60/ Studio 60B/Micro30. Most available. Specify D or splined shaft and cap colour.

HH Mixers Stereo 8/12/16/SM200. State cap colour required. Available.

LANEY AOR, SESSION and PRO TUBE AMPS. Original pattern 1/4" D shaft control knobs with correct black with white line caps still available for these amps. Replacements are push fit - originals may have been grub screw fix - same otherwise.

Laney Linebacker Early. Original, hard black with white line caps. These are 0.25" D shaft - if yours are 6mm you will need a spot of glue and/or a filler spacer. I can advise on this and supply the spacers FOC with knobs.

Laney Linebacker Late/World series/BC/GC series. Soft touch 6mm spline fitting. Original replacements available in small quantities. Full sets, please use replacements - look very similar but are hard touch and wear better.

HH Miscara/PD desks. (early 1990's) Grey knobs with coloured inserts, 4mm D shaft fixing.

If you are unsure which knob is the correct one for your equipment, please email us and we will send you our knob ID chart.

All knobs are 80p plus post and VAT - minimum posting value £7.50 inc UK post and VAT.

POTENTIOMETERS

Many different types were used across the HH and Laney model ranges - please refer to the pot chart. If they exist we have them...

Pot ID chart is also available. I know it all reads funny, but no smut please we're English...

We have a selection of Laney/HH/MAJ/Ameson/Tama/other equipment for sale. Please note straight away that this is NOT dear old ebaY, as all these items have been selected/prepared/restored/repaired as necessary by us to a high standard, and are in excellent (or stated) condition/full working order, require NO work, and are safety tested. All items are offered subject to being unsold, and we offer a discount for multiple purchases. Prices of the items do not include VAT or postage.

HH VS Bassamp head. FWO, refurbished by us. Very good. No issues £175 Sold

HH VS Musician Reverb head. FWO, refurbished by us. No issues. Very good. £175 Another available 23/08/10 - And a combo

HH CC100D bucket brigade delay ic's (SAD 1024) small quantity available £15 each ALL SOLD

HH Stereo 12 mixing desk. Full working order. Great cosmetics. No DEM. Jacks. £70 Available 23/08/10

STOCK LIST UPDATED 27th August 2010 please click anywhere HERE to view

Our two rehearsal rooms continue to be very well subscribed and we constantly make improvements to provide the best possible service, kit, and environment. Local users include Backstreet Symphony (the official THUNDER tribute band), The Buccaneers (yes really) incorporating Cargo, Whisky Syndicate, BeeGees Fever, Punk'd, Permission to Rock, Gunnrunner, Stampede, Kindred, Trident, Tequila Sunrise, The Boys Next Door, Andy Vargo, Ozmosis, Soul Survivors, Monkey Business, Devoted to Rock, Reboot, the FuZZ, Incendia, Kindred, Beneath the Surface, Animosity, Fans of Faye, NNN-Nig Summers, and not even to mention the Woolly Donkers. For full Katz details and our terms and conditions please click HERE

All service manuals, diagrams, components and spare parts are sold strictly on the basis that the buyer is qualified to be working on the equipment for which these are supplied, and that he/she also has the necessary technical knowledge to carry out fitment of such parts without causing injury to themselves or others. And also you should be equipped to safety test the equipment AFTER repair.

(A dead customer is a non paying customer)

You know it makes sense.

!From a health and safety point of view and especially with regard to valve amplifiers my advice is this:

Do NOT even open the case.

Seek professional help before you almost certainly ball it, make matters worse, or possibly top yourself.

... FORUM fingers - BEWARE!