tube boost pedal EF86 Booster
SKU: 24119683873
tube boost pedal

tube boost pedal EF86 Booster

$21.42 $23.80
Save 10%
No.2 Bestseller on oberkorerhof.com >

Pay in installments of $5.95 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 2 - Jul 7

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

tube boost pedal EF86 BoosterThe EF86 BOOSTER is a boutique all analog vacuum tube pedal using a pentode to deliver warm, clean gain for overdriving amplifier inputs or other pedals. This unique design minimizes current consumption while still providing high voltage for proper tube operation. Tons of headroom! Dial in your desired amount of tubey warmth via the DRIVE control. The following scope photos show low (clean), medium, and high drive waveforms. Plenty of 2nd order

The EF86 BOOSTER is a boutique all-analog vacuum tube pedal using a pentode to deliver warm, clean gain for overdriving amplifier inputs or other pedals. This unique design minimizes current consumption while still providing high voltage for proper tube operation. Tons of headroom!

Dial in your desired amount of tubey warmth via the DRIVE control. The following scope photos show low (clean), medium, and high drive waveforms. Plenty of 2nd order (octave) harmonics, independent of frequency! With TONE control all the way up, you get a treble booster frequency response very similar to a TS.

Product is not in stock, these are our current Wait Times.

Specifications

  • True bypass
  • 1 x EF86, all analog circuit
  • 20dB maximum gain
  • 30Hz to 6kHz bandwidth
  • 2V input, onset of clipping
  • 7Vrms output capability
  • 85V tube supply
  • -9V @ 200mA (center negative)
  • 4.7" x 3.7" x 2.1"

Downloads

Videos

Testimonials

  • "I received my booster and it’s fantastic!"
  • "The EF86 is just superb! Dead quiet, incredible feel. Super sweet tone. And the sweep on the knobs are just perfect!"
  • "No complaints - this pedal delivers more girth and more biggity!"
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 24119683873

Discover Niche Categories That Outsell tube boost pedal

Top-Converting Item to Boost Your Average Order

4.8 ★★★★★
Based on 1235 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
V
Verified Purchase
Vincent Feller
Cuba, US
★★★★★ 4
Nice but not ideal sizing.
These look nice. They do not have a traditional tongue, replacing it with some sort of elastic lining. They do fit larger than expected. I purchased wide since normally need that and it creates a bump just below the laces. Also, after size 11 there are only whole size increases. I feel an 11.5 regular would have fit better. They are pretty comfortable with a cushiony insole and thick sole.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 28, 2026
M
Verified Purchase
Mark Lorenzana
Natrona Heights, US
★★★★★ 5
Comfy and non slip! Amazing!
Size: 9.5, Color: All Black
I work 12hrs sometimes on my feet. These shoes are amazing !!! Broke them in on a 10hr shift and they feel like walking on pillows. My feet were comfy and not throbbing. I felt the difference in the non slip in the kitchen and I’ll say it outright……. Worth the $40! I got the brown coming and I’m assuming they’ll be just as comfortable. Bruno Marc’s are great!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 7, 2026
M
Verified Purchase
Michael S
Lowell, US
★★★★★ 5
Slip ons worth slipping on…
Size: 9.5, Color: Black, Size: 9.5, Color: Black
Very stylish and comfortable. I love how light they are because I’m on my feet all day. The black leather is very deep and very rich. The elevated sole gives me a tad more height, too…which I like. And yes, they’re slip ons. Don’t let the laces fool you. For under $40, these shoes are a strong value to consider…
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 19, 2026
B
Verified Purchase
Boss Babe
Waukegan, US
★★★★★ 5
I feel I’m walking on clouds
Size: 10, Color: Brown
I’m on my feet 6–8 hours a day working at the dealership, constantly walking the lot and helping customers—and I’ve gone through a lot of shoes trying to find something that actually holds up. These Bruno Marc MaxFlex Dress Sneakers honestly surprised me. They look sharp and professional enough for work, but feel more like a comfortable athletic shoe than a stiff dress shoe. From day one, there was no break-in period, no soreness, just all-day comfort. I feel I’m walking on clouds! If you’re in a job where you’re standing or moving around a lot but still need to look polished, these are hands down the most comfortable work shoes I’ve owned.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 26, 2026
B
Verified Purchase
Brian D. Norman
Whiting, US
★★★★★ 3
Not as expected
Size: 11, Color: Light Brown-pu
Unfortunately I ordered mine before the last review that said these are slip-ins. I'm not understanding that sock thing. It makes it harder to put the shoe on (So opposite of a slip-in) And it pulls your sock down (pictures show them wearing one) constantly when you're walking. And apparently the shoelaces are just for looks? But they're so long you have to tie them anyway, and as someone said the laces are bad. Skinny wax. I'm going to give this three stars though because they are very comfortable. So at this point in time I don't know if I'm going to return them (I got brown) as there aren't too many sneaker dress shoes (arch support) there's dress shoes that are more comfortable (but not sneaker comfortable).
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 11, 2026

recommand products

The DCF Whisper
21.01
Lamb of God
24.35
Greenstar® Pro All Stainless Steel Jumbo Twin Gear Commercial Slow Jui
26.25
Lamb Of God - Lamb Of God on Epic
26.88
4130 Steel - Fixed Gear / Single-Speed - Frame Set
24.58