Welcome to Granger Amplification. We manufacture high performance vacuum tube amplifiers.



Granger GNR-10036 valve amplifier

The GNR-10036 is an all-tube, hand-wired, 100 watt guitar amplifier. Built to create all the classic British rock tones, from 60's Cream and Hendrix, through 70's Van Halen, 80's Guns N Roses, and beyond. This 100 watt screamer can create the best of the "hotrodded and heavily modded" hard rock amp tones that flourished in the LA rock scene, but it's not limited to just that. Lush or funky clean tones are easily achieved at any setting by rolling off the guitar volume, on both the Normal Plexi channel AND the Overdrive Modern channel as well.

Two footswitchable channels (Normal Plexi and Overdrive Modern), and both Pre and Post phase inverter master volumes, allow for a wide array of tones to be dialed in. US-made ClassicTone (Magnetic Components Inc.) transformers are used for both superior tone and durability. Four JJ ECC83S/12AX7 preamp tubes, and four JJ 6550 power tubes for awesome, all-tube tone. Front panel controls/jacks are from L-R: Indicator - Mains switch - Standby switch - Post PI Master Volume - Presence - Bass - Mids - Treble - Pre PI Master Volume - Gain 1 - Channel Selector Switch - Gain 2 - Treble Peak Selector Switch - Input jack - Footswitch jack. Rear panel controls/jacks are from L-R: Passive effects loop Send & Return jacks - Bias test jacks - 2 speaker jacks - Impedance selector (4/8/16 ohms) - 1A HT fuse, 4A Mains fuse - AC Mains inlet (for detachable power cable). The power amp is fixed biased, with external bias adjustment pot and bias test jacks for the 4 output tubes. Stock power tubes are JJ 6550, but 6CA7, EL34, E34L, KT66, or KT77 can be substituted when ordering. For the service-minded player, an external bias adjustment with low voltage test points (1 per output tube and 1 common ground) allows the user to bias the amp when replacing valves without removing the chassis. Custom options include tolex and piping head cabinet changes, gold or silver "Plexi" knobs, and a custom cover with the Granger logo.

The Granger GNR-10036 is the perfect go-to amp for any situation, whether it be practicing at home, recording, performing in a small venue, or the largest arena stage. It sounds great with pedals, and just about any speaker cabinet configuration.

Granger GNR-10036 valve amplifier.

Granger GNR-10036 Demo videos
Demo 1

Demo 2

Granger GNR-10036 features:

* Handcrafted/handwired in USA
* US-made ClassicTone transformers
* Turret board wiring
* Output (RMS): 100 watts
* Preamp valves: 4 x ECC83S
* Power amp valves: 4 x 6550
* Diode (4) rectification
* Two footswitchable channels
* Bass, Middle, Treble controls
* Gain 1 (Normal Plexi channel)
* Gain 2 (Overdrive Modern channel)
* Pre and Post Phase Inverter Master Volumes
* Presence control
* 2-Way Selectable Treble Peaking circuit
* Channel Switch and LED indicator on Front Panel
* Passive Effects Loop
* 4/8/16 ohm impedance selector switch
* Cliff input jacks
* Cliff output jacks
* "Plexi" control knobs
* 1-Button Footswitch included
* External bias adjust and test points
* Dimensions: 29.5"W x 10"H x 8.5"D
* Chassis cutout: 24.375"
* Weight: 48 lbs.
* Custom Head Cover ($50)
* Tolex/Piping Change ($25)

Click to see Tolex and Grill cloth colors

Additional (No Charge) options (please specify in special instructions field when ordering):
* JJ 6CA7, EL34, E34L, KT66, or KT77 output valves
* Gold with Black Text or Black with White Text faceplates
* Gold/Black or Silver/Black Plexi knobs

Please specify options during ordering, or contact us within 10 days after placing order. Want an option that's not listed? Email us for a quote!

Please see our current turnaround times before ordering! Each amp is custom built to order.


I have read the Purchaser & User agreement.

Prices subject to change without notice. Orders already in progress are not subject to price changes. Granger Amplification reserves the right to make any product design changes without notice or obligation to incorporate these changes in products previously purchased.

©2007-2017 Granger Amplfication LLC. All rights reserved.
Made in the USA Official PayPal Seal

Ads help offset our web hosting expenses. Every click helps up keep our pricing fair and competitive. Thank you.

All content copyright 2007-2012 by Blue Nite Productions. grangeramp.com is the website of Granger Amplification LLC, a company that builds quality, custom amplifiers, one at a time, at very reasonable prices. Our focus is on producing all-tube, hand wired amplifiers based on proven designs such as vintage Marshall and Fender products, and other boutique amps, while charging a fair price. We also do kit building, modification, and repair work. We specialize in Plexi recreations, custom, boutique amp builds, and custom mods. All trademarks are owned by their respective companies and are only used herein for historical references. - guitar amplifier, amplifier, guitar, amp, amps, repair, mods, hand, wired, tone, custom amp, custom amps, amp mods, modifications, amplifier, handwired, point to point, tube, vacuum tube, valve amp, brown sound, van halen tone, van halen amp, made in usa, d18, mv36, e35, m45, m50, g50, cg50, gnr10036, lead overdrive 100, variwatt, variwattage, power scaling, vvr, tbfx, classictone, marshall, fender, jmp, jcm, superlead, plexi, 15 watt, 18 watt, 35 watt, 36 watt, 45 watt, 50 watt, 100 watt, single ended, push pull, 5E3, bassman, matchless, trainwreck, express, tweed, deluxe, curt granger, birmingham alabama