MARSHALL JTM45 BLUESBREAKER 2X12 WITH Rs & 4x10 BLOCK LOGO COMBO Also PINSTRIPE CABS small box jmp50 head

AND MARSHALL BABY BLUESBREAKER 10W 2X10

Marshall Early Pinstripe JTM45 ST BLUESBREAKER RS Output tx with Brass Vents and Green Back 20Watt speakers & 102 003 Cones,

but  Happy To fit 1965 Alnico Celestions if buyer prefers them to Green backs.

When this came in it had ad an interesting history well giged in Surrey by a  local hero (Obviously Not Eric Clapton) "so a well used player that showed its age and battle scared from years on the Road"AS You'ld expect from a 50 year old amp.During this time on the road it had very small side handles added,which are a pleasure when you need to move it"

In the 1980s it ended up in a Music shop in Birmingham when Pete the kind gent that sold it to me bought it for £70 yes £70... the only thing Pete had done In around his 30 year ownership was take it Marshall in the late 90s/2000s where it was serviced and had a new set of pots.

When i got the amp in it needed restoration, the grill cloth was wrong, the speakers were wrong and when i looked inside the amp i was thrilled to see that the out put transformer was also wrong,i was happy as it clearly had an Radio Spares Deluxe as original, so this had to be put Right and i knew that with Gec KT66 valve's this would be ......a killer Pure BluesbreakerTone 

Here is to  an email to Paul GT thats helps us understand The Clapton True Bluesbreaker Tone 

from World famous Author Tech and good friend Dave Petersen

The Deluxe OT in early Marshalls had KT66 or 6L6 valves connected to pins 1 and 9, the HT supply to pin 5. The secondary was wired for 15 ohms. There was no output selector as the OT adjustment was hardwired. This gave a primary load of 6.6 Kohms. Actually that's too high for 45 watts, it's the load normally used for 20 watts with EL34's or 30 watts with 6L6's in class A (cathode bias). The JTM45 was a fixed bias amp but used a high bias current adjustment (40 mA per valve) that took it towards class A. By 1966 it had begun to be fitted with the custom-wound Drake OT which had more conventional 3.5 Kohm loading, allowing a cooler running class AB bias setting of 30 mA's.

Where it gets interesting is that the same connection was used in the Deluxe OT fitted to the earliest Marshall Bluesbreakers, but the speakers were wired for 8 ohms not 16. By wiring the OT for 16 (15) ohms but operating it into 8 ohms, the primary load was approximately halved to 3.3 Kohms. That allowed the amp to develop higher power, around 45 watts, with lower bias current. The penalty was lower primary inductance (less bass) and more distortion. I think that was the sound that Clapton got on the Beano album that made the amp famous. Also his amp was probably fitted with KT66 valves, which have an individual sound under these conditions.
Too much information, mostly recycled from a piece on Clapton's BB amp I did for Guitar Magazine a few years ago, working from photos of the original wiring. But you might be interested!  Dave 

( so if this is the case then Eric,s old  chasis was obviously put in a thinlip box...

ild love to know ,Family of David Wedgbury RIP or Eric Clapton please call me Paul tel 01483 825102 )

The above pictured Bluesbreaker has been lovely restored make no mistake this amp and chasis started life in the Marshall factory in the mid 60s and it is probably the best sounding Bluesbreaker i have heard.The Rs with original GEC KT66 S all add to the charm.

ITS FOR SALE and the price reflects the side handles etc so a players bargain....

over 100 photos before after and during restoration

 £ SORRY THIS AMP IS NOW SOLD ampaholics@aol.com  

 

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PARK JTM45 Top Mount  1965 Top Mount ,Banna Knobs,Cloth Front,

Block logo,Original Transformers etc etc

RARE £ POA  

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Marshall jtm45 & pinstripe 4x12 with 20w Celestions £sold

 

Marshall 1966 4x12 speaker columns with 20w Celestion Green backs £sold

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Curc 1965 Marshall 4x10 JTM45 BLUESBREAKER With 4X10" CELESTIONS  

Original Cones and Genuine BLOCK LOGO "RARE" £ sold

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Marshall 1930 popular also know as Baby Bluesbreaker

1970 10watt with Mullard output valves,Real nice clean example

 "ONE CAREFULL OWNER FROM NEW"

 £POA

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MARSHALL JTM45 1966 £POA

AN OUTSTANDING ORIGINAL EXAMPLE  EX+ £sold

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MARSHALL JMP50 LEAD SMALL BOX VALVE HEAD 1971 C.

This small box jmp50 1971 LEAD belonged to an amp Tech enthusiastic for many Years ,He took the time to convert it to an earlier PLEXI Spec,

This was done by changing a small amount of Resistors n caps they have all been kept and could very quickly be reversed however it really does have a great tone as it is,

FIRST TO HEAR WILL BUY ...£ CALL FOR DETAILS AND TO ARRANGE VIEWING Ampaholics@aol.com 

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Marshall re cone Pinstripe 4x12 Recovered and re Grilled to original spec 

Available Empty or with a choice of vintage speakers £ call for full details

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