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For the ST-70, MKIII and MKIV

5AR4 / GZ34 Groove Tubes Premium Rectifier Tube

5AR4 / GZ34 Groove Tubes Premium Rectifier Tube

Regular price $80.00
Regular price Sale price $80.00
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Sold as each.

Tested and burned In for Quality Assurance

This is the highest current rated 5AR4 / GZ34 in production. Features rugged construction, dual halo getters, thick glass and a black base. I've used this great sounding tube regularly for years in the Dynakit / Dynaco ST-70 and MKIII / MKIV amps with excellent results.

An article about tube selection can be viewed here

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Your system can only be as good as its "weakest link". Quality components in good working order (preamp, amp, tubes, speakers, cables, etc.) are the only way to ensure top notch sound and performance from your stereo system.


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