Vintage BOGEN Challenger Vacuum Tube Amplifier CHB-50 Knobs ONLY. ** 3 with metal numeric rings, 3 without ** Welcome to our store! We are passionate collectors and sellers of a variety of items, including toys, comics, art, electronics, antiques, and vintage and retro collectibles, as well as other unique treasures. We would be thrilled if you chose to follow our shop and explore our inventory. To ensure transparency, we provide high-resolution pictures of each item for you to examine its condition. Our photos showcase multiple angles, so you can feel confident in your purchase. We provide estimates for measurements, but if you require exact measurements, please don't hesitate to message us. We take great care in packaging and shipping your items, utilizing reused materials whenever possible. For optimal protection, we construct custom packaging to fit each item, and some items may be shipped in cardboard shipping sleeves rather than boxes, to prevent shifting during transit. Our home is smoke-free, ensuring that your purchase arrives in the same condition as advertised. If you have any questions, please reach out to us, and we'll be sure to respond as quickly as possible. Thank you for choosing our store!

Bogen Owner Operation Manual ~ Challenger CHB 35 WATTS Amplifier ~ Schematic Service USED OLD / VINTAGE ITEM ( NOT NEW ) DO NOT EXPECT A NEW ITEM WITHOUT ISSUES, THIS OLD ITEM AS FEW, ISSUES ( 01/14 )THERE IS SOME STAINS / WATER / RUST PAPER CLIP YOU CAN READ EVERYTHING SEE PICTURES PLEASE SEE THE PICTURES ZOOM IN, THEY ARE PART OF THE DESCRIPTION AS IS . EBAY PROBLEM: IF YOU SEE WORDS ATTACHED TOGETHER THIS IS EBAY PROBLEM SORRY. QUESTIONS ARE WELCOME >>>>>> WHAT YOU ARE SEEING THIS IS WHAT YOU ARE GETTING, AS IS <<<<<< PICTURES: PLEASE PAY ATTENTION TO THE PICTURES THEY ARE PART OF THE DESCRIPTION ZOOM IN FOR MORE INFORMATION QUESTIONS: ARE WELCOME, SEE PICTURES AS IS !!! MORE ITEMS: I HAVE MORE NICE / OLD / ANTIQUE / VINTAGE / NEW ITEMS FOR SALE, JUST CLICK SEE OTHER ITEMS THANK YOU !!! THE ITEMS: THAT I SELL ARE NOT MY PERSONNEL ITEMS !! I am always open to improve my listing, your experience any comment please sent me a message !!! SHIPPING: THE SHIPPING COST OF MY LISTING IS WITHOUT BEEN PACK IT IS ESTIMATE / GUESSING BEFORE PACKING, IT IS WHY THE BUYER SHOULD ASK FOR AN INVOICE MEANING AFTER PACKING, WEIGHT AND DIMENSION AND DESTINATION IS DONE FOR A MORE ACCURATE COST .. I USUALLY SHIPPED ( USPS PRIORITY MAIL 2 OR 3 DAYS INCLUDING $ 100.00 FREE INSURANCE. IF YOU PREFER SOMETHING ELSE PLEASE LET ME KNOW IN ADVANCE!! BUYER PAY FOR SHIPPING + HANDLING + INSURANCE . USPS: SORRY I HAVE NO CONTROL OF USPS DELIVERY TIME !! SHIPPING: I feel very safe to use VERY GOOD / CLEAN reusable / recycling materiel that is very good to ship my items in a very safe shipping matter .. Let safe the planet all together by working all together to save our only Home the EARTH !!! I CAN SHIP INTERNATIONAL!!! SMOKE FREE ZONE !!! I AM OPEN FOR ANY SUGGESTION / IDEA FOR SAFE PACKAGING SEND ME A MESSAGE !! HANDLING CHARGE: THE MAIN REASON THAT I CHARGE FOR HANDLING IS I HAVE TO DRIVE 6 MILES TO DROP IT TO THE POST OFFICE AND BUY HEAVY DUTY PACKAGING TAPE AND FIND THE RIGHT BOX / ENVELOPE AND OF COURSE I HAVE TO SAFE PACKED IT PLUS MY TIME, BASE ON MY FEEDBACK VERY WELL APPRECIATE BY THE BUYER SEE FEEDBACK . MY ITEMS DESCRIPTION: I DO THE BEST I CAN / HONEST TO DESCRIBE MY ITEMS ALL OF THEM ARE USED OR PRE OWNED / OLD / VINTAGE / ANTIQUE, ARE ( SOLD AS IS ) PICTURES TELL MORE ABOUT THE ITEMS ALSO PART OF THE DESCRIPTION PLEASE PAY ATTENTION TO THE PICTURES / ZOOM IN I MAY MISSED SOMETHING OR FORGET SOMETHING PICTURES ARE PART OF THE DESCRIPTION ANY QUESTION ARE WELCOME, WHEN POSSIBLE I CHECK THE FUNCTIONALITY OF THE ITEM THE BEST OF MY KNOWLEDGE AND MENTION IT IN MY DESCRIPTION... FEEDBACK: If you are happy with your buying experience the way I describe my item, the way my pictures showed my items or issues if any, my communication, my fast shipping with your purchase. Please leave a positive feedback with few positive words and I will GLADLY do the same to you... Thank You very much.. PEACE ON EARTH, GOD BLESS AMERICA !!!

Bogen Owner Operation Manual ~ Challenger CHB 35 WATTS Amplifier ~ Schematic Service USED OLD / VINTAGE ITEM ( NOT NEW ) DO NOT EXPECT A NEW ITEM WITHOUT ISSUES, THIS OLD ITEM AS FEW, ISSUES ( 01/14 )THERE IS SOME STAINS / WATER / RUST PAPER CLIP YOU CAN READ EVERYTHING SEE PICTURES PLEASE SEE THE PICTURES ZOOM IN, THEY ARE PART OF THE DESCRIPTION AS IS . EBAY PROBLEM: IF YOU SEE WORDS ATTACHED TOGETHER THIS IS EBAY PROBLEM SORRY. QUESTIONS ARE WELCOME >>>>>> WHAT YOU ARE SEEING THIS IS WHAT YOU ARE GETTING, AS IS <<<<<< PICTURES: PLEASE PAY ATTENTION TO THE PICTURES THEY ARE PART OF THE DESCRIPTION ZOOM IN FOR MORE INFORMATION QUESTIONS: ARE WELCOME, SEE PICTURES AS IS !!! MORE ITEMS: I HAVE MORE NICE / OLD / ANTIQUE / VINTAGE / NEW ITEMS FOR SALE, JUST CLICK SEE OTHER ITEMS THANK YOU !!! THE ITEMS: THAT I SELL ARE NOT MY PERSONNEL ITEMS !! I am always open to improve my listing, your experience any comment please sent me a message !!! SHIPPING: THE SHIPPING COST OF MY LISTING IS WITHOUT BEEN PACK IT IS ESTIMATE / GUESSING BEFORE PACKING, IT IS WHY THE BUYER SHOULD ASK FOR AN INVOICE MEANING AFTER PACKING, WEIGHT AND DIMENSION AND DESTINATION IS DONE FOR A MORE ACCURATE COST .. I USUALLY SHIPPED ( USPS PRIORITY MAIL 2 OR 3 DAYS INCLUDING $ 100.00 FREE INSURANCE. IF YOU PREFER SOMETHING ELSE PLEASE LET ME KNOW IN ADVANCE!! BUYER PAY FOR SHIPPING + HANDLING + INSURANCE . USPS: SORRY I HAVE NO CONTROL OF USPS DELIVERY TIME !! SHIPPING: I feel very safe to use VERY GOOD / CLEAN reusable / recycling materiel that is very good to ship my items in a very safe shipping matter .. Let safe the planet all together by working all together to save our only Home the EARTH !!! I CAN SHIP INTERNATIONAL!!! SMOKE FREE ZONE !!! I AM OPEN FOR ANY SUGGESTION / IDEA FOR SAFE PACKAGING SEND ME A MESSAGE !! HANDLING CHARGE: THE MAIN REASON THAT I CHARGE FOR HANDLING IS I HAVE TO DRIVE 6 MILES TO DROP IT TO THE POST OFFICE AND BUY HEAVY DUTY PACKAGING TAPE AND FIND THE RIGHT BOX / ENVELOPE AND OF COURSE I HAVE TO SAFE PACKED IT PLUS MY TIME, BASE ON MY FEEDBACK VERY WELL APPRECIATE BY THE BUYER SEE FEEDBACK . MY ITEMS DESCRIPTION: I DO THE BEST I CAN / HONEST TO DESCRIBE MY ITEMS ALL OF THEM ARE USED OR PRE OWNED / OLD / VINTAGE / ANTIQUE, ARE ( SOLD AS IS ) PICTURES TELL MORE ABOUT THE ITEMS ALSO PART OF THE DESCRIPTION PLEASE PAY ATTENTION TO THE PICTURES / ZOOM IN I MAY MISSED SOMETHING OR FORGET SOMETHING PICTURES ARE PART OF THE DESCRIPTION ANY QUESTION ARE WELCOME, WHEN POSSIBLE I CHECK THE FUNCTIONALITY OF THE ITEM THE BEST OF MY KNOWLEDGE AND MENTION IT IN MY DESCRIPTION... FEEDBACK: If you are happy with your buying experience the way I describe my item, the way my pictures showed my items or issues if any, my communication, my fast shipping with your purchase. Please leave a positive feedback with few positive words and I will GLADLY do the same to you... Thank You very much.. PEACE ON EARTH, GOD BLESS AMERICA !!!

Bogen Owner Operation Manual ~ Challenger CHB 35 WATTS Amplifier ~ Schematic Service USED OLD / VINTAGE ITEM ( NOT NEW ) DO NOT EXPECT A NEW ITEM WITHOUT ISSUES, THIS OLD ITEM AS FEW, ISSUES ( 01/14 )THERE IS SOME STAINS / WATER / RUST PAPER CLIP YOU CAN READ EVERYTHING SEE PICTURES PLEASE SEE THE PICTURES ZOOM IN, THEY ARE PART OF THE DESCRIPTION AS IS . EBAY PROBLEM: IF YOU SEE WORDS ATTACHED TOGETHER THIS IS EBAY PROBLEM SORRY. QUESTIONS ARE WELCOME >>>>>> WHAT YOU ARE SEEING THIS IS WHAT YOU ARE GETTING, AS IS <<<<<< PICTURES: PLEASE PAY ATTENTION TO THE PICTURES THEY ARE PART OF THE DESCRIPTION ZOOM IN FOR MORE INFORMATION QUESTIONS: ARE WELCOME, SEE PICTURES AS IS !!! MORE ITEMS: I HAVE MORE NICE / OLD / ANTIQUE / VINTAGE / NEW ITEMS FOR SALE, JUST CLICK SEE OTHER ITEMS THANK YOU !!! THE ITEMS: THAT I SELL ARE NOT MY PERSONNEL ITEMS !! I am always open to improve my listing, your experience any comment please sent me a message !!! SHIPPING: THE SHIPPING COST OF MY LISTING IS WITHOUT BEEN PACK IT IS ESTIMATE / GUESSING BEFORE PACKING, IT IS WHY THE BUYER SHOULD ASK FOR AN INVOICE MEANING AFTER PACKING, WEIGHT AND DIMENSION AND DESTINATION IS DONE FOR A MORE ACCURATE COST .. I USUALLY SHIPPED ( USPS PRIORITY MAIL 2 OR 3 DAYS INCLUDING $ 100.00 FREE INSURANCE. IF YOU PREFER SOMETHING ELSE PLEASE LET ME KNOW IN ADVANCE!! BUYER PAY FOR SHIPPING + HANDLING + INSURANCE . USPS: SORRY I HAVE NO CONTROL OF USPS DELIVERY TIME !! SHIPPING: I feel very safe to use VERY GOOD / CLEAN reusable / recycling materiel that is very good to ship my items in a very safe shipping matter .. Let safe the planet all together by working all together to save our only Home the EARTH !!! I CAN SHIP INTERNATIONAL!!! SMOKE FREE ZONE !!! I AM OPEN FOR ANY SUGGESTION / IDEA FOR SAFE PACKAGING SEND ME A MESSAGE !! HANDLING CHARGE: THE MAIN REASON THAT I CHARGE FOR HANDLING IS I HAVE TO DRIVE 6 MILES TO DROP IT TO THE POST OFFICE AND BUY HEAVY DUTY PACKAGING TAPE AND FIND THE RIGHT BOX / ENVELOPE AND OF COURSE I HAVE TO SAFE PACKED IT PLUS MY TIME, BASE ON MY FEEDBACK VERY WELL APPRECIATE BY THE BUYER SEE FEEDBACK . MY ITEMS DESCRIPTION: I DO THE BEST I CAN / HONEST TO DESCRIBE MY ITEMS ALL OF THEM ARE USED OR PRE OWNED / OLD / VINTAGE / ANTIQUE, ARE ( SOLD AS IS ) PICTURES TELL MORE ABOUT THE ITEMS ALSO PART OF THE DESCRIPTION PLEASE PAY ATTENTION TO THE PICTURES / ZOOM IN I MAY MISSED SOMETHING OR FORGET SOMETHING PICTURES ARE PART OF THE DESCRIPTION ANY QUESTION ARE WELCOME, WHEN POSSIBLE I CHECK THE FUNCTIONALITY OF THE ITEM THE BEST OF MY KNOWLEDGE AND MENTION IT IN MY DESCRIPTION... FEEDBACK: If you are happy with your buying experience the way I describe my item, the way my pictures showed my items or issues if any, my communication, my fast shipping with your purchase. Please leave a positive feedback with few positive words and I will GLADLY do the same to you... Thank You very much.. PEACE ON EARTH, GOD BLESS AMERICA !!!