County Line Guitar Amps Little River – Killer Tweed Combo with Reverb!

This amp packs some serious tone into a size that's perfect for small gigs, rehearsals, or practice. It's super easy to dial in a killer drive tone with a splash of reverb without blowing the doors off, what more do you really need? If you're looking for a vintage inspired, tone packed amp that you can plug any guitar into and get your clean, edge of breakup, and dirty tones from the guitar, this is a great option. We're happy to introduce you to County Line Amps!

Little River Amp©
I wanted a small amp for home and studio. I wanted it to sound big but not loud. And I wanted
spring reverb. We know of course that Fender amps did not have reverb until the black panel
era of the ’60s.
So....
This amp combines two 50’s Princeton circuits, the 5F2 and the 5F2A. The Little River has the
5F2 tone circuit, which (to me) sounds more open than the later 5F2A, although not quite as
loud. The power section is a combination of the two legacy amps, with some other tweaks,
resulting in an extremely quiet-at-idle amp. You can barely tell it’s on without a guitar plugged
in.
The reverb circuit concept is borrowed from ’60s Ampeg amps, like the Reverberocket. It uses
one tube, a dozen resistors/capacitors, and a spring tank. And it sounds great! There are three
controls for the reverb: Tone, Mix, and River. The tone knob works as a treble cut, so the reverb
can go from dark to bright. Mix is how much of the reverb signal is blended in with the dry
signal. The River knob regulates how long the reverb effect stretches out. Commonly called
dwell or tail, there are several names for this control so I decided I could invent my own. There
is a plug under the chassis for a reverb on/off foot switch.
Here are the components:
• Finger joint solid pine cabinet, extremely resonant, and covered in aged lacquered
tweed
• Fat Jimmy 10" 8 Ohm speaker
• Custom fabricated and welded aluminum chassis
• Anodized aluminum, laser-engraved faceplate
• Hand wired G10/FR4 eyelet board (way better than the old fiber board - will never
become conductive)
• F&T filter caps
• Jupiter coupling caps
• NOS Allen Bradley carbon comp resistors where it matters (Basically the whole preamp.
These sound fantastic in vintage circuits.)
• Cloth covered wire, and Teflon-coated high temp wire where needed

Handmade in Denver Colorado
www.countylineguitaramps.com
info@countylineguitaramps.com

8/22/2025

2

©County Line Guitar Amps 2025

• Heyboer power transformer
• Mercury Magnetics output transformer
• Switchcraft jacks and plugs
• Alpha pots
• Belton tube sockets
• Negative feedback switch under the chassis (Switch forward uses NFB. Switch to the rear
bypasses NFB, which sounds fatter and breaks up a little sooner - it's not dramatic)
• 4 tubes: 5Y3, 6V6, 12AX7, 12DW7. All these tubes are in production today.

2 watts clean, 6 watts full power. Weighs 22 pounds.
------------------------------------------------------------------------------------------------------------------------
County Line Guitar Amps warranty:
* Parts and labor for one year on the circuit.
* 30 days on speaker and tubes.
* Beyond that, I will fix my amps for the cost of parts and postage.
* Repair of damage due to mishandling are not covered, but gladly accepted!
If I built it, I will fix it.
And the obligatory safety warning:
* Tube amps may contain high voltages (400 Volts) inside the chassis, even when unplugged.
* County Line Guitar Amps has designed and constructed your amp to conform to safety codes.
* If your 3-prong plug is connected to a properly functioning outlet and you handle your amp
like the electrical appliance that it is, you are safe from any potential shock.
* Remove the back panel at your own risk.

For an in hand description please call 747.388.2929