---
product_id: 53433422
title: "Riverstone Audio - Vacuum Tube Pin Straightener for 9-Pin B9A-Base (12AX7 / EL84 / 5670) and 7-Pin B7G-Base (5654 / 6AU6 / 6AQ5A) Tubes - Hardened Stainless - Hand Held - Straightens Vacuum Tube Pins"
brand: "riverstone audio"
price: "365 Ft"
currency: HUF
in_stock: true
reviews_count: 8
url: https://www.desertcart.hu/products/53433422-riverstone-audio-vacuum-tube-pin-straightener-for-9-pin-b9a
store_origin: HU
region: Hungary
---

# Compact Size Precision CNC Machined Lifetime Warranty Riverstone Audio - Vacuum Tube Pin Straightener for 9-Pin B9A-Base (12AX7 / EL84 / 5670) and 7-Pin B7G-Base (5654 / 6AU6 / 6AQ5A) Tubes - Hardened Stainless - Hand Held - Straightens Vacuum Tube Pins

**Brand:** riverstone audio
**Price:** 365 Ft
**Availability:** ✅ In Stock

## Summary

> 🎶 Tune Up Your Sound with Precision!

## Quick Answers

- **What is this?** Riverstone Audio - Vacuum Tube Pin Straightener for 9-Pin B9A-Base (12AX7 / EL84 / 5670) and 7-Pin B7G-Base (5654 / 6AU6 / 6AQ5A) Tubes - Hardened Stainless - Hand Held - Straightens Vacuum Tube Pins by riverstone audio
- **How much does it cost?** 365 Ft with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hu](https://www.desertcart.hu/products/53433422-riverstone-audio-vacuum-tube-pin-straightener-for-9-pin-b9a)

## Best For

- riverstone audio enthusiasts

## Why This Product

- Trusted riverstone audio brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Protect Your Gear:** Straightened pins reduce the risk of tube and socket damage.
- • **Ultimate Precision:** Crafted from hardened stainless steel for unmatched durability.
- • **Professional Quality:** Designed for audiophiles and musicians who demand the best.
- • **Versatile Compatibility:** Works with a wide range of US, European, and modern tubes.
- • **Pocket-Sized Convenience:** Easily fits in your toolkit or pocket for on-the-go adjustments.

## Overview

The Riverstone Audio Vacuum Tube Pin Straightener is a pocket-sized tool designed to realign bent or misaligned vacuum tube pins. Made from hardened stainless steel, it offers a lifetime warranty and is compatible with various US, European, and modern Russian/Chinese tubes. This essential accessory helps prevent tube and socket damage, ensuring optimal performance for audiophiles and musicians alike.

## Description

A professional grade hand-held vacuum tube pin straightener with a LIFETIME warranty. Used to straighten and align vacuum tube pins. Great accessory for professional musician's, audiophile's and repair shop's working with tube-based audio components. Compatible with US/European and Russian/Chinese miniature 7-pin and 9-pin tubes with B7G bases (e.g., 6AK5, 5654, 6AU6, 6AQ5A tubes) and B9A bases (e.g., 12AX7, 12AU7, 5670, 6BQ5, EL84 tubes). Bent tube pins can permanently deform and loosen the contact between tube pins and socket contacts, which could negatively affect sound quality. Inserting tubes with bent pins into a socket can also damage the glass-metal interface along tube pins, resulting in reduced tube life or glass breakage. Modeled after vintage hand-held pin straighteners - but with significant improvements in machining accuracy and material. The straightener is CNC machined from a premium-grade martensitic stainless steel and hardened to RC50 (Rockwell C50). In addition to providing long life (as well as corrosion resistance) we chose a premium grade stainless for good reason; if a softer material is used for a pin straightener, for example aluminum alloys, pin contamination can occur (aluminum transferred to tube pins can form Al2O3). This pin straightener was designed for trouble-free use - you will absolutely not wear this one out! A small, pocket size, foam-lined tin storage box is included to store the pin straightener when not in use. Dimensions of pin straightener: 36 mm length x 22 mm maximum dia. ***PLEASE NOTE*** Do not use for severely bent pins - tube damage and glass breakage may occur. Not recommended for gold-coated (or other coated pins) as damage/scraping of pin coatings can occur. May not be as suitable for some of the very old vintage Chinese tubes, which can have a slight variation in pin spacing and pin diameter (however, no problem using the straightener with newer Russian and Chinese tubes with 9-pin B9A or 7-pin B7G bases).

## Features

- A pocket size pin-straightener used to realign and straighten bent/misaligned vacuum tube pins. Can be used for US/European and modern issue Russian/Chinese miniature 9-pin and 7-pin vacuum tubes with US-European 9-pin B9A and 7-pin B7G bases. Tubes with B9A bases include 12AX7, 12AU7, 5670 and EL84. Tubes with B7G bases include 6AK5, 5654, EF95, 6AQ5A and 6AU6.
- Great accessory for professional musicians, audiophiles and repair shops working with tube-based amplifiers.
- LIFETIME WARRANTY - This one is the real deal; precision CNC machined from a premium grade stainless steel (SUS 420) and hardened to Rockwell C50 for long life. Pin straighteners manufactured from softer materials, such as aluminum, can cause pin contamination (tube pins can also quickly wear straighteners made from softer materials). You will not find a longer life or more precise pin-straightener anywhere.
- Straight/aligned tube pins will reduce tube socket damage during tube installation and also reduce the likelihood of tube damage (forcing bent pins into a socket significantly increases the stress at the pin/glass interface of a tube, which can lead to tube damage and premature tube failure). Dimensions of pin straightener: 36 mm length x 22 mm diameter. Supplied with a pocket size, foam-lined tin storage box (82 mm x 40 mm x 20 mm).
- ***Please note*** Do not use for severely bent pins - tube damage and glass breakage can occur. Not recommended for use with gold coated pins (coatings can be scraped/damaged by the pin straightener). Compatible with vintage US/EU and modern issue Russian and Chinese tubes having B7G and B9A bases, may not be suitable for a few of the very early vintage Chinese tubes, which sometimes have variation in pin tolerances. Laser engraved logo/print on the surface.

## Images

![Riverstone Audio - Vacuum Tube Pin Straightener for 9-Pin B9A-Base (12AX7 / EL84 / 5670) and 7-Pin B7G-Base (5654 / 6AU6 / 6AQ5A) Tubes - Hardened Stainless - Hand Held - Straightens Vacuum Tube Pins - Image 1](https://m.media-amazon.com/images/I/91MpfFzYCqL.jpg)
![Riverstone Audio - Vacuum Tube Pin Straightener for 9-Pin B9A-Base (12AX7 / EL84 / 5670) and 7-Pin B7G-Base (5654 / 6AU6 / 6AQ5A) Tubes - Hardened Stainless - Hand Held - Straightens Vacuum Tube Pins - Image 2](https://m.media-amazon.com/images/I/91le2RPiedL.jpg)
![Riverstone Audio - Vacuum Tube Pin Straightener for 9-Pin B9A-Base (12AX7 / EL84 / 5670) and 7-Pin B7G-Base (5654 / 6AU6 / 6AQ5A) Tubes - Hardened Stainless - Hand Held - Straightens Vacuum Tube Pins - Image 3](https://m.media-amazon.com/images/I/91BbwAgnpKL.jpg)
![Riverstone Audio - Vacuum Tube Pin Straightener for 9-Pin B9A-Base (12AX7 / EL84 / 5670) and 7-Pin B7G-Base (5654 / 6AU6 / 6AQ5A) Tubes - Hardened Stainless - Hand Held - Straightens Vacuum Tube Pins - Image 4](https://m.media-amazon.com/images/I/91rAU6HR5DL.jpg)
![Riverstone Audio - Vacuum Tube Pin Straightener for 9-Pin B9A-Base (12AX7 / EL84 / 5670) and 7-Pin B7G-Base (5654 / 6AU6 / 6AQ5A) Tubes - Hardened Stainless - Hand Held - Straightens Vacuum Tube Pins - Image 5](https://m.media-amazon.com/images/I/91M4kT6cXrL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Must have tool for tube amp owners
*by M***L on February 4, 2018*

This little device works great and the build quality is perfect.So many times I've struggled with preamp tube pins, I wish I had this years ago.Straightens and spaces the pins for easy insertion, no more bent pin problems.Worth every penny, the case is simple but very nice and keeps it secure.I have 11 tube amps and most have multiple preamp tubes and at least 1 12AT7 so this tool will get a lot of use.

### ⭐⭐⭐⭐⭐ Extremely well made, works great, built for life
*by J***N on September 27, 2020*

Extremely well made. Works great. Pin openings are beveled to 3x the pin size to accept bent pins better than the built-in straightener on my B&K 747 tester. This one comes in a nice metal tin with a padded interior that fits perfectly in my Hickok 6000 tester with the lid closed.Btw, the first thing you notice when you get the package is the custom holographic stickers used as tape on the box and foam & bubble wrap packaging. It’s a nice touch that indicates you’re getting something very thoughtfully crafted.

### ⭐⭐⭐⭐⭐ What A Problem Solver!  Should Have Bought It Years Ago!!!
*by A***Y on January 16, 2018*

I should have bought this YEARS ago!!! Extremely well made for a single purpose - straightening out bent tube pins - and it works perfectly! I've been buying tube products for several years, and typically, that means buying more tubes! The issue is that often times, these tubes, especially the vintage tubes, sometimes arrive with bent pins. That's no fun when trying to roll tubes in my equipment. But no worries, this product solves the problem for $20! Just get it and be done, then you can get whatever tubes you want from anyplace, and straighten the pins as needed! Riverstone is first class from their products to their packaging. Highly recommended to anyone rolling tubes!

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*Product available on Desertcart Hungary*
*Store origin: HU*
*Last updated: 2026-02-25*