DYNACO Stereo 70 Manuel de restauration - Page 2
Parcourez en ligne ou téléchargez le pdf Manuel de restauration pour {nom_de_la_catégorie} DYNACO Stereo 70. DYNACO Stereo 70 20 pages. Series ii tube amplifier
Également pour DYNACO Stereo 70 : Manuel de restauration (5 pages), Manuel du propriétaire (12 pages), Instructions pour l'assemblage (16 pages)
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of you wish to preserve the exact sound of your amplifier and to meet that goal we have
available an identical pc module replacement using mil-sped fiberglass composite (CAE
# ASM-3R). Additionally for those wishing to retain the midrange of the original Stereo-
70 but extend those midrange qualities to the bass and high frequencies (the stock amp's
bass is loose and uncontrolled and its high frequencies are muted in comparison to the
midrange) we offer our all triode upgrade module (CAE# ASM-3U). The price is the
same for either module.
At the end of this document you will find restoration packs that address either the
restoration or the upgrade alternatives. Each pack includes the Quad capacitor
replacement module, ceramic tube sockets, Mil-Spec Teflon wire, and one of the driver
modules. Also included are the various hardware specified in this document. We also
have available replacement tubes as needed. Finally, we also provide this restoration
service in our lab. The price depends upon the option you select and therefore we suggest
that you contact us (www.dynaco-doctor.com) to discuss your situation and your options
accordingly.
A. Tools & Documents Required - Before you begin you must have a few basic tools
on hand – these items are essential for a successful restoration. Additionally, you
should have available associated documentation. Please obtain the items as follows:
• RCA shorting plugs (Fabricate using Radio Shack # 274-339)
• Digital Voltmeter (Inexpensive Model from Radio Shack or Equivalent)
• Tools, Soldering Iron & Soldering Tools, and general DIY guidelines (See the CAE
Tech Note @
THE DIY Bible: - Kit Builders Guide
• Wire Jumpers with Alligator Clips (Radio Shack # 270-180)
• 100 ohm 2 Watt resistor (not a critical value, any value near 100 ohms will be fine)
• 100K ohm 3 to 5 Watt resistor
• 20 fuses rated at 1Amps, Slo-Blo (not larger nor smaller)
• 3 fuses rated at 3 Amp, Slo-Blo
• Original Dynaco Stereo-70 Owners / Assembly Manual – (Full manual available at
our web site
Stereo-70 Original Dynaco Owners Manual (full)
• Quad capacitor / power supply replacement module documents (available from the
CAE website @
• Restoration or Upgrade Driver Module documents (available from the CAE website
@
ASM-3R Restoration Module Documentation or ASM-3U Upgrade Documentation
B. Your Safety
In this document, I hope to provide you with some methods and techniques that will
guide you to resurrect a long term out of service Stereo 70 or a unit that has begun to
show the effects of age and restore it to better than new operation. It is absolutely critical
that you are certain that you have the skills to safely operate the tools recommended and
that you always remember that you will be working with lethal voltages. In particular, the
Dynaco Stereo 70 Power Amplifier
Restoration Manual
Detailed Procedure & Guide
ASM-S7U-B Documentation
R0 4-03
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