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ANTIQUE RARE QRS TESTED GOOD WITH BOX RED TOP MUSIC CO QRS 01A 201 A NR    US $49.99

RAYTHEON 6414 AMPLIFIER 3 MICATUBE NEW    US $9.99

6CG7 6FQ7 AUDIO AMPLIFIER HAM RADIO TV TUBE RCA brand pair    US $3.95

6H6 6H6G AUDIO AMPLIFIER HAM RADIO TV TUBE Zenith brand    US $3.95

6AK5 5654 6096 AUDIO AMPLIFIER HAM RADIO TV TUBE Sylvania brand pair    US $3.95

6J5 AUDIO AMPLIFIER HAM RADIO TV TUBE RCA brand pair    US $3.95

6BW4 audio amplifier HAM radio rectifier tube GE brand    US $2.95

6AQ5A 6AQ5 audio amplifier radio TV tubes Sylvania brand pair    US $3.95

6K6 6K6GT audio amplifier TV radio tubes RCA brand pair    US $2.95

5726 6AL5 audio amplifier HAM radio TV tubes RCA brand pair    US $2.95

6J7 AUDIO AMPLIFIER HAM RADIO TUBES RCA brand set of 4    US $4.95

6AU6 6AU6A AUDIO AMPLIFIER HAM RADIO TV TUBE RCA brand pair    US $8.01

Zenith 6JE6C 6LQ6 NOS tests 105 on BK 707 Tester    US $23.00

set of 8 vintage radio frequency amplifier vacuum tube type 6J6 used tested    US $.49

set of 7 vintage type 6AG5 radio amplifier vacuum tubes used tested    US $.49

1 National Union NU JAN CNU 50L6GT Smoke Glass Radio Amplifier Vacuum Tube NOS    US $3.99

NOS VINTAGE CLAROSTAT RESISTOR TUBE AMPLIFIER RADIO ELECTRONICS W ORIG BOX 110    US $9.99

1 Sylvania 0A3 Radio Amplifier Vacuum Tube NOS    US $1.99

1 Wards Airline Type 27 Engraved Base Radio Amplifier Vacuum Tube Tested Strong    US $6.99

1 Sylvania Type 41 Radio Amplifier Vacuum Tube Tested Strong    US $4.99

1 Zenith 35W4 Black Plate Radio Amplifier Vacuum Tube NOS    US $3.99

1 RCA Radiotron 1C7G Radio Amplifier Vacuum Tube Tested Strong    US $3.99

1 KEN RAD JAN CKR 6N7 VT 96 Radio Amplifier Vacuum Tube Tested NOS    US $1.99

1 KEN RAD 6F6 Radio Amplifier Vacuum Tube Tested Very Strong    US $1.99

1 Sylvania 6BN8 O Getter Radio Amplifier Vacuum Tube NOS    US $6.99

1 Western Electric JW 6AK5 Radio Amplifier Vacuum Tube NOS    US $9.99

RARE RADIO RF AMPLIFIER GLOBE TUBE UX TYPE K BRASS PINS HIGH BASE TESTED GOOD    US $40.00

EX RCA Type 80 80ST USA VT 80 Audio Amplifier Radio Rectifier tube    US $14.99

EX RCA Type 80 80ST Audio Amplifier Radio Rectifier tube    US $14.99

12AT7 ECC81 tube NOS Amperex Bugle Boy 1 pc    US $34.99

Vintage 1959 The Fisher Model X 101 ST Tube Stereo Master Control Amplifier    US $199.50

Vintage Bogan Challenger CHB 35A Amplifier    US $170.00

3 Majestic radio tube type G 24 mp    US $9.99

radio or amplifier tube Raytheon 70L7GT 4 each New Old Stock    US $12.00

VINTAGE ROBERTS STEREO REEL TO REEL TAPE RECORDER 1620    US $135.50

Two NOS NIB GE JAN 12AT7 WA WB 6201 Guitar Audio Receiver Vacuum Tubes    US $9.99

Solid Cloth Covered Wire Assortment New Stock 5 Colors    US $9.95

Two RCA 5751 12AX7 Type Audio Receiver Guitar Vacuum Tubes    US $24.99

Two NOS GE 12AU7A 6680 Audio Receiver Guitar Vacuum Tubes    US $9.99

Vintage Zenith Stereo SF112 Amplifier with 12ax7 6aq5 5y3 tube    US $50.00

TUBE RADIO AND AMPLIFIER SCHEMATICS PRICE BLOW OUT    US $7.99

Vintage RCA 7199 1970s preamp tube tested Sunn Ampex short plate    US $.09

Vintage GE General Electric 7199 USA preamp tube tested Sunn Ampex Fisher    US $.09

6H6 Raytheon vintage tube for amp amplifier or radio good condition    US $6.95

GE 6SJ7Y 6SJ7 tube excellent condition for vintage radio and amplifier    US $7.95

6SA7 WGT National Tube for vintage amp or radio amplifier nice Made in USA    US $6.95

RCA TYPE 807 BEAM POWER AMPLIFIER RADIO AUDIO TUBE NIBNOS TEST VERY STRONG    US $11.99

6 Vintage TELEFUNKEN 12AX7 ECC83 Radio Amplifier Tubes Marked THE FISHER    US $45.50

4 Vintage THE FISHER Radio Amplifier Tubes 7591A    US $74.00

1 Vintage Cardon C 182 B Radio Amplifier Tube    US $9.99

1 Vintage Eveready RAYTHEON Type 45 ER 245 Globe Radio Amplifier Tube    US $49.00

1 Vintage RCA 211 Radio Amplifier Tube    US $9.99

Vintage Collector Quality Matched Pair of General Electric GE 6550A KT88 Tubes    US $599.95

1 VINTAGE DELCO 6S4 VACUUM TUBE TESTED STRONG AUDIO HAM RADIO AMPLIFIER    US $6.99

1 VINTAGE DELCO 12BE6 VACUUM TUBE TESTED STRONG AUDIO HAM RADIO AMPLIFIER    US $5.99

VINTAGE EMERSON 6EM5 VACUUM TUBE TESTED STRONG AUDIO HAM RADIO AMPLIFIER    US $7.99

Knight Tube Amplifier KN 3280 Allied Radio Corp Chicago    US $49.99

RCA Radiotron Designer’s Handbook Fourth edition Lots of radio design info    US $9.99

Delco 6H6 Tube Amplifier Valve NOS    US $.99

Vacuum Tube Audio Power Supply Amplifier Wireless Specialty Apparatus Co    US $49.99

VINTAGE GE 6G6G NOS VACUUM TUBE TESTED STRONG AUDIO RADIO AMPLIFIER    US $16.99

1 VINTAGE GE 6S4 VACUUM TUBE TESTED STRONG AUDIO HAM RADIO AMPLIFIER    US $4.99

1 VINTAGE GE 12BE6 VACUUM TUBE TESTED STRONG AUDIO HAM RADIO AMPLIFIER    US $5.99

1 VINTAGE HALLICRAFTERS 6BL8 ECF80 NOS VACUUM TUBE TESTED AUDIO HAM RADIO AMP    US $14.99

1 IEC 6CG8A NOS VACUUM TUBE TESTED STRONG AUDIO HAM RADIO AMPLIFIER    US $4.99

1 IEC 12BA6 HF93 NOS VACUUM TUBE TESTED STRONG AUDIO HAM RADIO AMPLIFIER    US $7.99

1 VINTAGE IEC 17EW8 NOS VACUUM TUBE TESTED STRONG AUDIO HAM RADIO AMPLIFIER    US $7.99

New Matched Pair 572B Ham Radio Tubes    US $89.99

HAM RADIO PORCELAIN TUBE SOCKETS    US $5.00

Huge 4 Prong RCA JAN 810 Radio Amplifier Vacuum Tube    US $9.99

Emerson Stereo Hi Fi Tube Amplifier Amp    US $30.00

Pair Amperex Westinghouse 6GW8 ECL86 Radio Audio Amplifier Tubes NOS    US $9.99

Pair Zenith 6V6G Audio Amplifier Tubes Good    US $9.99

Pair General Electric 6L6GC Radio Output Tubes Good    US $9.99

Pair Sylvania 6SN7GT VT 231 Military Radio Audio Tubes    US $9.99

SIX RADIO AMPLIFIER TUBES TESTED EXCELLENT BRASS BASE AIR KING SHEILD RCA BRANDS    US $150.00

1 Tung Sol 12AX7 ECC83 Vintage NOS Radio Guitar Tube 1950s Audio Twin Triodes    US $29.99

New Matched Quad 811A Ham Radio Tubes    US $89.99

Ultra rare Presto model K 8 record cutting lathe recording machine 1950s as is    US $79.99

GL 6136 NOS General Electric radio amplifier vintage vacuum tubes 5 tested 6AU6A    US $34.99

VALVO EF86 6267 Tube Audio Amplifier    US $22.99

RARE TELEFUNKEN EF86 SILVER Tube Audio Amplifier    US $99.99

GE General Electric 5814 12AU7 Tube Tested 5 Star    US $29.00

ECC83 12AX7 VALVO Ribbed Plates Tube Audio Amplifier    US $69.99

Telefunken ECC83 12AX7 Vacuum Tube Audio Amplifier    US $99.99

6BQ5 EL84 AF Power Pentode 5    US $15.00

Cetron JAN 5R4 WGB Full Wave Rectifier Tube    US $15.00

Lot of 20 Vintage 12AV6 Amplifier Tubes ALL Test STRONG    US $48.00

Lot 6 Vintage 6DE6 Radio Tubes Tested Good    US $20.00

3V4 AA5 radio amplifier vintage transoceanic electron vacuum 4 tubes valves DL94    US $17.99

3S4 AA5 radio amplifier vintage electron vacuum 4 tubes valves 3S4 tested DL92    US $14.99

3A4 AA5 radio amplifier vintage electron vacuum 4 tubes valves 3A4 tested DL93    US $11.99

1U5 AA5 radio amplifier vintage transoceanic electron vacuum 4 tubes valves 1U5    US $14.99

4pcs Top CMC 858 S R new pair binding posts    US $28.99

1R5 AA5 radio amplifier transoceanic vintage electron vacuum 3 tubes tested 1R5    US $9.99

1T4 AA5 RCA radio amplifier vintage electron vacuum tubes 4 valves tested 1T4    US $14.99

BOGEN CHB 50 Radio Tube AMPLIFIER INSTALLATION OPERATION MANUAL CHB50    US $13.95

does anyone have a schematic for rewiring an old challenger ch30 amp into a guitar amp?

I've got a really old challenger ch30 amplifier that is in good working order. Can it be rewired into a guitar amp using the same tubes/transformers etc. I can get new caps and resistors at radio shack if need be.

The easiest way to use a PA amp as a guitar amplifier is to simply get either a pre-amp (you can make one yourself if you'd like to save some money), or a good EQ pedal to put in front of it.

But, if you still want to rewire, the best way to go about it is pretty simple:

*find what components you already have and want to reuse (ie, your tubes and transformers)

*find what components or features you want to add (eg - reverb, eq)

*find a brand or model of another amplifier that contains roughly the combination of what you have/want (try Bogner!)

*go to the maker's website and search for schematics - for example, if you go to Fender's website, you can find the schematics for every product they ever made. 90% of the time, you can find them.

*buy components, and solder it all together!

You aren't going to find many tutorials on how to convert an old Bogen to a guitar amp. Any tutorial that you find is basically going to say what I did above.

By the way, don't buy components at Radio Shack...they are REALLY expensive and of pretty poor quality. Try www.jameco.com , they are load cheaper and have much better quality stuff.

Oh, one last HUGE bit of info - you need to make absolutely sure that the transformers and tubes you are using are compatible with the circuit you are creating. If you don't, you could very easily start your amp (and house) on fire.

Big Tube Radio Siemens Schatulle P48 from 1954