Hopper Built Amps
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This page is for Hopper Built Amplifiers, Hopper's Radio Service, and CB/Ham radio hobby.
2 x macom mrf421 amp with bias.
$400. That’s $69 off the retail price.
SOLD SOLD SOLD !!!
Connex 3300 HP ZX. Fresh and ready for a new home ! $275
Fresh Galaxy 66V. Ready for another 20+ years of service. $300
SOLD SOLD SOLD !!!
2019 Cobra 29 ready for a new home.
$225 SOLD SOLD SOLD !!!
09/19/2026
All this cool gear is for sale and ready to ship !!!
4 x macom mrf421 with bias. $749
2 x macom mrf421 with bias. $469
Galaxy DX66 V. $325
Connex 3300 HP ZX $300
All radios have Goldfinger hifi, big regulator and large filter caps. New bezel, meter, face and diamond plate lids. All radios have been restored and still have mod limiters intact and adjusted properly. All radios have bipolar finals ( 1969 or 2312 ). No mosfets in these old school rigs.
09/12/2026
All this cool gear is for sale.
4 x macom mrf421 with bias. $749
2 x macom mrf421 with bias. $469
Galaxy DX 33 HML. $250 SOLD !!
Galaxy DX66 V. $325
Connex 3300 HP ZX $300
All 3 radios have Goldfinger hifi, big regulator and large filter caps. New bezel, meter, face and diamond plate lids. All radios have been restored and still have mod limiters intact and adjusted properly. All 3 radios have bipolar finals ( 1969 or 2312 ). No mosfets in these old school rigs.
Tuning the output network on a 6 transistor. 😎
Another weekend full of repairs. May do some videos if I see something educational.
09/09/2026
Old school Galaxy DX33HML.
Goldfinger hifi, big filter caps, big regulator, modulation limiters replaced and adjusted, new bezel, face, s/rf meter and new lids. 12w rms and 30w pep.
09/08/2026
Old school Connex 3300HP-ZX. The original high power !!! Dual 2312 finals. 😎
Goldfinger hifi, big filter cap, big regulator, modulation limiters replaced and adjusted properly, new meter, bezel, face, and lids. She’s fresh to death at 15w rms and 45w pep.
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Address
Hopper's Radio Service
Murrells Inlet, SC
29576
Opening Hours
| Monday | 10am - 6pm |
| Tuesday | 10am - 6pm |
| Wednesday | 10am - 6pm |
| Thursday | 10am - 6pm |
| Friday | 10am - 6pm |
| Saturday | 12pm - 6pm |