1966 Supro s6420 Thunderbolt

Marsoni

M251S

$900.00

Get it in 3 business days with 1 day shipping. Friday, May 29

1966 Supro s6420 ThunderboltFor your consideration, Garrett Park Guitars presents this 1966 Supro s6420 Thunderbolt Amplifier. This s6420 was one of the last few made before Supro discontinued the line. As such, this amp features a more solidly braced baffle and a solid state rectifier that Supro used to replace the 5U4 tube used in earlier models, effectively tightening up the low end on the amp. The amp itself is in original condition save for a replaced 3 prong power cord and

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My husky loves it. It's one toy she's not been able to destroy yet. She plays without when she's outside in her lot and will play for an hr at a time. She loves it moves and bounces instead of just tossing it and letting her fetch. The battery life is really good. We charge it about twice a week. It's quiet, so she loves that. It's perfect size for her.

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Reviewed in the United States on March 29, 2026

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leland ormsby

Chelsea, US

★★★★★ 3

Pretty good

Color: Orange

The battery does not last long , puppy does like playing with the ball

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Reviewed in the United States on May 20, 2026

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Mastiff Mom

Lowell, US

★★★★★ 5

They love it! Good quality toy.

Color: Orange

My dogs love this ball. The texture is perfect. They like being able to bite it. It doesn’t tear apart when they do either. Other interactive balls I’ve purchased have been hard plastic and much louder. Everyone is enjoying this toy more than those. It’s so fun to watch the dogs play with this. Video is from the first moment it arrived. They both play with it hard now. We’ve had it three days. I’ll update its longevity if it’s shorter than I feel it should be.

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Reviewed in the United States on March 13, 2026

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Susan

New York, US

★★★★★ 5

Keeps dogs busy.

Color: Orange

The dogs love this ball. They are afraid when it vibrates but as soon as it jumps and moves around, they are on it. They will play with it for quite awhile. Charge lasts for a long time. Very durable. This dog can tear anything apart but it's still in one piece.

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Reviewed in the United States on May 28, 2026

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Anderson

Phoenix, US

★★★★★ 5

Good for smaller jawed dogs.

Color: Orange

This ball is so much fun for our 5 month old. He both chases it and lets it bounce in his mouth. This was after playing with it already for 10 minutes. The ball charges with a usb charger and lasts for a long time. I do take it away to keep the toy fresh and prevent him from just chewing on it. I will say the ball startles you a bit when it turns on in your hand. Happy with a different toy.

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Reviewed in the United States on February 9, 2026