CB Radio Shop - RA-201 Echo reverb box. Bench tested and ready to go. Fitted 4pin Mic plug wired for any Cybernet type board, inc; York, Harrier, Midland, Rotel CB's + many
5 Pin Din REALISTIC DELTA EC1 MIC AMPLIFIER w/ ECHO CHAMBER & ROGER BEEP CB | eBay
6 Piece Dealer Lot CB Echo Board ECHO IC for CB HAM RADIO 2" x 2" SIZE Delta EC2 | eBay
Astatic's MobileMax - Amazing Echo Box?
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DELTA EC1 4 pin Cobra CB HAM DYNAMIC MIC AMPLIFER / ECHO CHAMBER w/ ROGER BEEP | eBay
Amazon.com: LUITON 40-Channel CB Radio LT-298 Compact Design with External Speaker Jack, Large Easy to Read LED Display Compatible with 12-24V Voltage : Electronics
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Astatic's MobileMax - Amazing Echo Box?
Amazon.com: DELTA EC1 Dynamic MIC Amplifier/Echo Chamber w/Roger BEEP 4 pin Cobra CB HAM : Electronics
Second Hand Euro CB Echo Box Wired Midland - Radioworld UK
5 PIN COBRA DELTA EC1 DYNAMIC MIC AMPLIFIER / ECHO CHAMBER w/ ROGER BEEP CB HAM | eBay
Amazon.com: DELTA EC1 Dynamic MIC Amplifier/Echo Chamber w/Roger BEEP 4 pin Cobra CB HAM : Electronics