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发表于 2012-6-12 14:52:54
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本帖最后由 yjwu 于 2012-6-13 16:33 编辑
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有pdf格式的手冊，但是關鍵性的圖紙則尚在搜尋中) Z) L. E: U8 X" ~4 Q
有的圖紙為2388.pdf, 2486.pdf, 2 W- p' s+ U3 R' b n+ l
5 D+ ]( U: t% K. S5 z7 W# g' q5 [有興趣的話可加入Yahoo討論群Lyrec論壇(http://tech.groups.yahoo.com/group/Lyrec/)7 |; v, ^/ }$ ?% P
，註冊的人不多，但是在2012年4月14日7 Q: `& h' u5 ^9 ]
Lyrec PTR-1的主要設計人J鷨gen Michaelsen也加入了論壇，下面是一份發帖* t9 q$ y; `# E, e2 |, I
% h8 C& i* y/ P: J2 r' BI want to welcome J鷨gen to our group. At the risk of our besieging him with
& t- S( Q2 D! }* [) Oquestions, J鷨gen was the designer of the Frida. He has kindly joined the group& U* B( W, K" i" C
and hopefully when we are up against the wall with a technical question I hope, E5 W' n. L+ n, r
he will share his knowledge. He sent me an earlier email:/ P s1 [. y$ Q5 x) X
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Dear Harold8 _$ q$ ~* F0 n6 T$ H! d
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I should like to introduce myself as owner as well as the chief designer
+ J1 k4 x- h% w' Qfor the Lyrec PTR-1 in the early eightees. I found this machine
# R+ @% h1 Y% I2 Gunfortunately was too late for the market and I was reluctant to make* X7 N9 i- ^, J) T
the design - but anyway a lot of innovative solution were chosen from& i: q( d9 m; z7 e: X0 h- U
design start. Just to name a few: 1. Switch mode PS for reel motors. 2.2 m/ `" @' M6 T7 ]8 S/ A% w. V
Very high bias frequency with HX. 3. Real current record amplifiers with: ?+ K- I: h) i/ V4 p( M5 m+ [
background from instrumentation amplifiers. 4. Switchable EQ without
6 C6 d" \7 O* a% \9 Rsep. adjustments. 5. Belt driven capstan for easy substitution of, W' k6 @6 @: ~& D$ T! h/ M0 q! t2 s1 y
capstan motor. 6. Assembler programmed mProcessor for high speed
; @$ C* z* _/ J$ t a( { ?counting. 7. J-Fet head-preamplifier stage and so on. In particular the
) X6 B0 O+ Q4 G6 h) j. ySMPS for the reel motors contribute to the small size and weight without) g. H( _4 N5 Y- k2 o( U" l! \
sacrifice of wind performance.4 F* _6 X3 o6 a3 w {
5 t# n/ \+ u, QIf you have any background questions - Kind regards - J鷨gen7 Q2 B+ ?3 I9 D1 ?
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Lyrec PTR-1創新的設計:
# B" e& a1 k4 |) z1. 捲帶馬達切換式電源供應(Switch mode PS )! f9 f( k4 H: U
2. 極高的偏磁頻率
+ c7 m+ j2 ?( F8 B/ R4 V5 H- c! B3. 錄音放大器使用真正的電流放大(?) Real current record amplifiers with background from instrumentation amplifiers.0 k( h6 O9 A7 @! R$ R/ u D
4. 可直接切換的等化曲線設定
5 r8 Z, n( `/ \) A7 P* p' P5. 皮帶驅動的主導軸；便於直接更換主導軸馬達7 z; B$ p4 f' o+ u2 S6 v8 W
6. 直接以組合語言程式控制微處理機, a* @+ F. V0 R3 Y7 [ V1 X- i
7. 使用J-FET的磁頭輸入前置放大器$ s5 Q, Z8 Z1 h7 J! a% \4 Q, V
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其中 捲帶馬達使用切換式電源供應使捲帶馬達尺寸及重量大幅縮小，但仍保留優異的捲帶性能$ t+ Y2 ]& r( [2 R' ]7 T
===============================================
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附圖為一位韓國開盤機愛好者的帶架子的Lyrec PTR-1 "Frida"
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4 u! r8 C. y: x$ l9 E$ c; p: V" [Lyrec PTR-1 Mk-II的特徵是快進/快退有對應的LED，照片中一對剛好是Mark II(左), Mark I(右)；擁有人是Rich Brown。我曾跟他買了一套ReVox C270的錄放音卡
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我的Lyrec PTR-1 "Frida" Mk-I，面板暫時卸下% `9 ^9 o2 M B5 Z. o8 w
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